isobutane, 75-28-5

Articles:

PubMed:Separation of the fatty acids in menhaden oil as methyl esters with a highly polar ionic liquid gas chromatographic column and identification by time of flight mass spectrometry.

PubMed:Adjunctive cryotherapy for pigmentary keratitis in dogs: a study of 16 corneas.

PubMed:Correlation effects on the relative stabilities of alkanes.

PubMed:Management of locally aggressive mandibular tumours using a gas combination cryosurgery.

PubMed:Reactivity and Mössbauer spectroscopic characterization of an Fe(IV) ketimide complex and reinvestigation of an Fe(IV) norbornyl complex.

PubMed:Dynamics of Cl + propane, butanes revisited: a crossed beam slice imaging study.

PubMed:Formation of trivalent zirconocene complexes from ansa-zirconocene-based olefin-polymerization precatalysts: an EPR- and NMR-spectroscopic study.

PubMed:Unrestricted absolutely localized molecular orbitals for energy decomposition analysis: theory and applications to intermolecular interactions involving radicals.

PubMed:Oxygen-functionalized few-layer graphene sheets as active catalysts for oxidative dehydrogenation reactions.

PubMed:Identification of volatile and semivolatile compounds in chemical ionization GC-MS using a mass-to-structure (MTS) Search Engine with integral isotope pattern ranking.

PubMed:Pathologic fracture of jaw in unicystic ameloblastoma treated with marsupialization.

PubMed:Superacid-promoted ionization of alkanes without carbonium ion formation: a density functional theory study.

PubMed:Temperature control during regeneration of activated carbon fiber cloth with resistance-feedback.

PubMed:Impact of the BEA zeolite morphology on isobutane adsorption followed by Reversed-Flow Inverse Gas Chromatography.

PubMed:Diffusion in confinement: kinetic simulations of self- and collective diffusion behavior of adsorbed gases.

PubMed:Use of gas combination cryosurgery for treating ameloblastomas of the jaw.

PubMed:Shock tube explorations of roaming radical mechanisms: the decompositions of isobutane and neopentane.

PubMed:Selective homogeneous and heterogeneous catalytic conversion of methanol/dimethyl ether to triptane.

PubMed:On the mechanisms of the reactions between some perfluorinated compounds and CH(5) (+) --experimental and theoretical approaches.

PubMed:A general and efficient Monte Carlo method for sampling intramolecular degrees of freedom of branched and cyclic molecules.

PubMed:On the thermodynamic stability of clathrate hydrates V: phase behaviors accommodating large guest molecules with new reference states.

PubMed:Role of the somersault rearrangement in the oxidation step for flavin monooxygenases (FMO). A comparison between FMO and conventional xenobiotic oxidation with hydroperoxides.

PubMed:Mechanism of ultrasound scission of a silver-carbene coordination polymer.

PubMed:Ventricular fibrillation after exposure to air freshener-death just a breath away.

PubMed:Experimental and theoretical investigation of the kinetics of the reaction of atomic chlorine with 1,4-dioxane.

PubMed:N,N'-Bis(3β-acet-oxy-5α-cholest-6-yl-idene)hydrazine.

PubMed:Entropy effects in hydrocarbon conversion reactions: free-energy integrations and transition-path sampling.

PubMed:Emulsion inversion induced by CO2.

PubMed:Determination of volatile organic compounds in human breath for Helicobacter pylori detection by SPME-GC/MS.

PubMed:An autopsy case of butane gas abuse.

PubMed:On the temperature dependence of flammability limits of gases.

PubMed:Transient molecular dynamics simulations of liquid viscosity for nonpolar and polar fluids.

PubMed:Preliminary results on bubble detector as personal neutron dosemeter.

PubMed:Control of electrothermal heating during regeneration of activated carbon fiber cloth.

PubMed:Simultaneous selective detection of organophosphate and phthalate esters using gas chromatography with positive ion chemical ionization tandem mass spectrometry and its application to indoor air and dust.

PubMed:Capture and recovery of isobutane by electrothermal swing adsorption with post-desorption liquefaction.

PubMed:Kinetics of the reactions of Cl atoms with several ethers.

PubMed:The rate-limiting step in P450 hydroxylation of hydrocarbons a direct comparison of the "somersault" versus the "consensus" mechanism involving compound I.

PubMed:Biosynthesis of 2-hydroxyisobutyric acid (2-HIBA) from renewable carbon.

PubMed:[Isobutane driven salbutamol sulfate metered dose inhaler: formulation selection and respiratory tract absorption in guinea pigs].

PubMed:Chemical pneumonitis and subsequent reactive airways dysfunction syndrome after a single exposure to a household product: a case report.

PubMed:Alkane activation over acidic zeolites: the first step.

PubMed:Metathesis of alkanes and related reactions.

PubMed:Volatile organic compounds in a residential and commercial urban area with a diesel, compressed natural gas and oxygenated gasoline vehicular fleet.

PubMed:Multicomponent, hydrogen-bonded cylindrical capsules.

PubMed:Benchmark thermochemistry of the C(n)H(2n+2) alkane isomers (n = 2-8) and performance of DFT and composite ab initio methods for dispersion-driven isomeric equilibria.

PubMed:Hydrogen bonding to alkanes: computational evidence.

PubMed:Influence of carbon source and Fe-catalyst support on the growth of multi-walled carbon nanotubes.

PubMed:Open-cage fullerene-like graphitic carbons as catalysts for oxidative dehydrogenation of isobutane.

PubMed:Analysis of acetylene in blood and urine using cryogenic gas chromatography-mass spectrometry.

PubMed:NiO-polyoxometalate nanocomposites as efficient catalysts for the oxidative dehydrogenation of propane and isobutane.

PubMed:Effect of gas pressure and gas type on the fragmentation of peptide and oligosaccharide ions generated in an elevated pressure UV/IR-MALDI ion source coupled to an orthogonal time-of-flight mass spectrometer.

PubMed:Recycling of transformer oil contaminated by polychlorinated biphenyls (PCBs) using catalytic hydrodechlorination.

PubMed:In-situ NMR studies of isobutane activation and exchange in zeolite beta.

PubMed:[Investigation on baseline correction in pollutant monitoring on-line by NIR spectroscopy].

PubMed:The unique decomposition behavior of the dimeric dialkylaluminum hydrazide [(Me3C)2Al-N(H)-N(H)-Me]2-butane versus ammonia elimination.

PubMed:Kinetics and mechanism of catalytic partial oxidation reactions of alkanes on rhodium surfaces.

PubMed:Laser-induced fluorescence monitoring of higher alkanes production from pure methane using non-oxidative processes.

PubMed:Tandem mass spectrometry in food safety assessment: the determination of phthalates in olive oil.

PubMed:Simple physics-based analytical formulas for the potentials of mean force for the interaction of amino acid side chains in water. IV. Pairs of different hydrophobic side chains.

PubMed:Selective methylative homologation: an alternate route to alkane upgrading.

PubMed:Adsorptive separation of isobutene and isobutane on Cu3(BTC)2.

PubMed:Influence of different parameters on droplet size and size distribution of sprayable sunscreen emulsions with high concentration of UV-filters.

PubMed:Vibrational overtone spectroscopy of saturated hydrocarbons dissolved in liquefied Ar, Kr, Xe, and N2.

PubMed:The carbene reactivity surface: a classification.

PubMed:Temperature dependence of the rate coefficients for the reactions of Br atoms with dimethyl ether and diethyl ether.

PubMed:Secondary ozonides of substituted cyclohexenes: a new class of pollutants characterized by collision-induced dissociation mass spectrometry using negative chemical ionization.

PubMed:Differentiation of diastereomeric N-aryltetrahydropyrano/tetrahydrofuranochromenylamines under electron ionization and chemical ionization conditions.

PubMed:Barriers of hydrogen abstraction from primary, secondary, and tertiary alkane sites by O(3P).

PubMed:Anaerobic oxidation of short-chain hydrocarbons by marine sulphate-reducing bacteria.

PubMed:In situ chemical ionization in ion trap mass spectrometry--the beneficial influence of isobutane as a reagent gas.

PubMed:Does the reagent gas influence collisional activation when performing in situ chemical ionization with an ion trap mass spectrometer?

PubMed:Potential of mean force of hydrophobic association: dependence on solute size.

PubMed:Ab initio thermochemistry of the hydrogenation of hydrocarbon radicals using silicon-, germanium-, tin-, and lead-substituted methane and isobutane.

PubMed:Contra-thermodynamic behavior in intermolecular hydrogen transfer of alkylperoxy radicals.

PubMed:The concept of protobranching and its many paradigm shifting implications for energy evaluations.

PubMed:Characterization of one-dimensional position sensitive detectors with improved efficiency and position resolution for neutron spectrometers.

PubMed:Flammability limits of isobutane and its mixtures with various gases.

PubMed:Simple physics-based analytical formulas for the potentials of mean force for the interaction of amino acid side chains in water. 3. Calculation and parameterization of the potentials of mean force of pairs of identical hydrophobic side chains.

PubMed:Differentiation of diastereomeric conduramine derivatives under electron ionization and chemical ionization mass spectral conditions.

PubMed:Complex gas hydrate from the Cascadia margin.

PubMed:Bond strengths: the importance of hyperconjugation.

PubMed:Weak hydrogen bonding can initiate alkane C-H bond activation in acidic zeolites.

PubMed:Determination and impact of volatile organics emitted during rush hours in the ambient air around gasoline stations.

PubMed:High-level ab initio studies of hydrogen abstraction from prototype hydrocarbon systems.

PubMed:Mechanistic aspects of HC-SCR over HZSM-5: hydrocarbon activation and role of carbon-nitrogen intermediates.

PubMed:Solid-phase microextraction: investigation of the metabolism of substances that may be abused by inhalation.

PubMed:Saturated hydrocarbon-benzene complexes: theoretical study of cooperative CH/pi interactions.

PubMed:Impact of molecular structure on the lubricant squeeze-out between curved surfaces with long range elasticity.

PubMed:The isobutylene-isobutane alkylation process in liquid HF revisited.

PubMed:Application of the cell potential method to predict phase equilibria of multicomponent gas hydrate systems.

PubMed:Role of rare earth cations in Y zeolite for hydrocarbon cracking.

PubMed:Characterization of iron catalysts prepared by chemical vapor deposition on nonzeolitic supports.

PubMed:Rydberg-valence mixing in the carbon 1s near-edge X-ray absorption fine structure spectra of gaseous alkanes.

PubMed:Studies of site selective hydrogen atom abstractions by Cl atoms from isobutane and propane by laser flash photolysis/IR diode laser spectroscopy.

PubMed:Determination of 2-alkylcyclobutanones with electronic impact and chemical ionization gas chromatography/mass spectrometry (GC/MS) in irradiated foods.

PubMed:Measurement and estimation of rate constants for the reactions of hydroxyl radical with several alkanes and cycloalkanes.

PubMed:Validation of a gas chromatography--ion trap tandem mass spectrometry for simultaneous analyse of cocaine and its metabolites in saliva.

PubMed:Surface roughness and adsorption isotherms of molecularly thin liquid films: an x-ray reflectivity study.

PubMed:Reactivity of isobutane on zeolites: a first principles study.

PubMed:Alkane C-H bond activation in zeolites: evidence for direct protium exchange.

PubMed:Investigating the significance of multiple scattering in ultrasound contrast agent particle populations.

PubMed:The "somersault" mechanism for the p-450 hydroxylation of hydrocarbons. The intervention of transient inverted metastable hydroperoxides.

PubMed:Sudden death after isobutane sniffing: a report of two forensic cases.

PubMed:C-H activation of alkanes on Rh+ n (n=1-30) clusters: size effects on dehydrogenation.

PubMed:Mechanism studies of the conversion of 13C-labeled n-butane on zeolite H-ZSM-5 by using 13C magic angle spinning NMR spectroscopy and GC-MS analysis.

PubMed:Measurement of volatile organic compounds in the urban atmosphere of Harris County, Texas, USA.

PubMed:Analysis of cocaine and three of its metabolites in hair by gas chromatography-mass spectrometry using ion-trap detection for CI/MS/MS.

PubMed:Adsorption of butane isomers and SF6 on Kureha activated carbon: 1. Equilibrium.

PubMed:Kinetic acidity of aliphatic hydrocarbons. Hydrogen isotope exchange with cesium cyclohexylamide in cyclohexylamine.

PubMed:Mass spectral analysis of chloropicrin under negative ion chemical ionization conditions.

PubMed:Optimization of MoVSb oxide catalyst for partial oxidation of isobutane by combinatorial approaches.

PubMed:Ionic liquid and solid HF equivalent amine-poly(hydrogen fluoride) complexes effecting efficient environmentally friendly isobutane-isobutylene alkylation.

PubMed:Chemical behavior of the biradicaloid (HO...ONO) singlet states of peroxynitrous acid. The oxidation of hydrocarbons, sulfides, and selenides.

PubMed:Alkane oxidation by osmium tetroxide.

PubMed:Active sites for NO reduction over Fe-ZSM-5 catalysts.

PubMed:Dicarboxylic degradation products of nonylphenol polyethoxylates: synthesis and identification by gas chromatography-mass spectrometry using electron and chemical ionization modes.

PubMed:Infrared absorption features of gaseous isopropyl carbocations.

PubMed:The "Tuebingen desiccator" system, a tool to study oxidative stress in vivo and inhalation toxicokinetics.

PubMed:On the gas-phase reactivity of complexed OH+ with halogenated alkanes.

PubMed:Molecular dynamics averaging of Xe chemical shifts in liquids.

PubMed:Volatile organic compound adsorption in a gas-solid fluidized bed.

PubMed:Identification of an adsorption complex between an alkane and zeolite active sites.

PubMed:Low pressure chemical ionization in ion trap mass spectrometry.

PubMed:Mapping the interaction energy surfaces of cyclic alkanes: evaluating the transferability of an ab initio based potential model.

PubMed:Vibrational relaxation in methyl hydrocarbons at high temperatures: propane, isobutene, isobutane, neopentane, and toluene.

PubMed:Three cases of sudden death due to butane or propane gas inhalation: analysis of tissues for gas components.

PubMed:Simultaneous determination of fatty, dicarboxylic and amino acids based on derivatization with isobutyl chloroformate followed by gas chromatography-positive ion chemical ionization mass spectrometry.

PubMed:Photochemical charge transfer and trapping at the interface between an organic adlayer and an oxide semiconductor.

PubMed:Intramolecular electrophilic aromatic substitution in gas-phase-protonated difunctional compounds containing one or two arylmethyl groups.

PubMed:Stereospecific ion-molecule reactions of anabolic-type steroid tertiary alcohols with proton-donating cations.

PubMed:A theoretical study of the mechanism of selective fluorination of saturated hydrocarbons by molecular fluorine. Participation of CHCl3 solvent molecules in the ionic process.

PubMed:Controllable synthesis, characterization and catalytic properties of WO(3)/ZrO(2) mixed oxides nanoparticles.

PubMed:A fatal case considered to be due to cardiac arrhythmia associated with butane inhalation.

PubMed:Homogeneous catalysis with methane. A strategy for the hydromethylation of olefins based on the nondegenerate exchange of alkyl groups and sigma-bond metathesis at scandium.

PubMed:Cyclopentadienyl substituent effects on reductive elimination reactions in group 4 metallocenes: kinetics, mechanism, and application to dinitrogen activation.

PubMed:Novel pathways for oxygen insertion into unactivated C-H bonds by dioxiranes. Transition structures for stepwise routes via radical pairs and comparison with the concerted pathway.

PubMed:Determination of pentachlorophenol by negative ion chemical ionization with membrane introduction mass spectrometry.

PubMed:Complete characterisation of lanolin steryl esters by sub-ambient pressure gas chromatography-mass spectrometry in the electron impact and chemical ionisation modes.

PubMed:Simultaneous determination of nitrate and nitrite in human plasma by gas chromatography-mass spectrometry.

PubMed:H-coupled electron transfer in alkane C-h activations with halogen electrophiles.

PubMed:Effects of allatotropin and allatostatin on in vitro production of juvenile hormones by the corpora allata of virgin females of the moths of Heliothis virescens and Manduca sexta.

PubMed:Formation of a 1-bicyclo[1.1.1]pentyl anion and an experimental determination of the acidity and C-H bond dissociation energy of 3-tert-butylbicyclo[1.1.1]pentane.

PubMed:Acid-catalyzed isomerization of pivalaldehyde to methyl isopropyl ketone via a reactive protosolvated carboxonium ion intermediate.

PubMed:Manganese, iron and sulfur K edge XAFS of promoted sulfated zirconia catalysts.

PubMed:Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures.

PubMed:Orbital phase control of the preferential branching of chain molecules.

PubMed:Ventricular fibrillation following inhalation of Glade Air Freshener.

PubMed:19F NMR chemical shifts. 1. Aliphatic fluorides.

PubMed:Mechanistic studies of (porphinato)iron-catalyzed isobutane oxidation. Comparative studies of three classes of electron-deficient porphyrin catalysts.

PubMed:Sensitivity effects in Uk'37 paleotemperature estimation by chemical ionization mass spectrometry.

PubMed:Alkane Carbonylation with Carbon Monoxide on Sulfated Zirconia: NMR Observation of Ketone and Carboxylic Acid Formation from Isobutane and CO This work was supported by grant No. 99-03-32454 from the Russian Foundation for Basic Research (RFBR) and in part by a joint RFBR-INTAS grant (No. 95-0194). The authors sincerely thank Dr. V. N. Sidelnikov for GC-MS analysis.

PubMed:Electrophilic nitration of alkanes with nitronium hexafluorophosphate.

PubMed:Determination of alpha- and beta-hydroxycarbonyls and dicarbonyls in snow and rain samples by GC/FID and GC/MS employing benzyl hydroxyl oxime derivatization

PubMed:Determination of azide in blood and urine by gas chromatography-mass spectrometry.

PubMed:Formation of carboxylic acids from small alkanes in zeolite H-ZSM-5

PubMed:Mass spectrometric study of persistent acid metabolites of nonylphenol ethoxylate surfactants.

PubMed:Chemical ionization mass spectra of acetals of beta-D-glycopyranosylnitromethanes

PubMed:Ferrocenyl derivatives with one, two, or three sulfur-containing arms for self-assembled monolayer formation

PubMed:Studies in organic mass spectrometry. Part 25. Benzyl ion formation in chemical ionisation (methane or isobutane) of some ortho-alkylhetero-substituted diphenylcarbinols

PubMed:Analysis and quantitation of insect juvenile hormones using chemical ionization ion-trap mass spectrometry.

PubMed:Isolation and identification of terpenoid sex pheromone components from extracts of hemolymph of males of the Caribbean fruit fly.

PubMed:Direct mass spectrometric analysis of Bacillus spores.

PubMed:Isobutane. CAS# 75-28-5.

PubMed:The effects of electron and chemical ionization modes on the MS profiling of whole bacteria.

PubMed:Ultrasonographic appearance of exogenous isobutane gas in the mammary glands of dairy cows.

PubMed:Role of hydrogen migration in the mechanism of acetic acid elimination from MH(+) ions of acetates on chemical ionization and collision-induced dissociation

PubMed:Intramolecular proton transfers in stereoisomeric gas-phase ions and the kinetic nature of the protonation process upon chemical ionization

PubMed:Molecular Design, Characterization, and Application of Multiinformation Dyes (MIDs) for Optical Chemical Sensings. 3. Application of MIDs for λ(max)-Tunable Ion-Selective Optodes.

PubMed:Determination of eight trichothecenes by gas chromatography-mass spectrometry after sample clean-up by a two-stage solid-phase extraction.

PubMed:Microbial removal of alkanes from dilute gaseous waste streams: kinetics and mass transfer considerations.

PubMed:Sudden death due to butane inhalation.

PubMed:Identification and biosynthesis of (E,E)-10,12-tetradecadienyl acetate in Spodoptera littoralis female sex pheromone gland.

PubMed:Metathesis of Alkanes Catalyzed by Silica-Supported Transition Metal Hydrides

PubMed:Determination of fetal bile acids in biological fluids from neonates by gas chromatography-negative ion chemical ionization mass spectrometry.

PubMed:[Problems raised by the reformulation of inhalations after the removing of propulsors "chlorofluorocarbons" (CFC)].

PubMed:Quantitative analysis of plasma acylcarnitines using gas chromatography chemical ionization mass fragmentography.

PubMed:On-Line Monitoring of the Photolysis of Benzyl Acetate and 3,5-Dimethoxybenzyl Acetate by Membrane Introduction Mass Spectrometry.

PubMed:Gas chromatographic-mass spectrometric identification of metabolites from alpha-pinene in human urine after occupational exposure to sawing fumes.

PubMed:Fragmentation of protonated O,O-diethyl O-aryl phosphorothionates in tandem mass spectral analysis.

PubMed:Pulmonary toxicity following exposure to an aerosolized leather protector.

PubMed:Urban leakage of liquefied petroleum gas and its impact on Mexico city air quality.

PubMed:Fragmentation of protonated O,O-dimethyl O-aryl phosphorothionates in tandem mass spectral analysis.

PubMed:High-performance liquid chromatography with light-scattering detection and desorption chemical-ionization tandem mass spectrometry of milk fat triacylglycerols.

PubMed:Occurrence of N-acetyl- and N-O-diacetyl-neuraminic acid derivatives in wild and mutant Crithidia fasciculata.

PubMed:Rapid analysis of animal drug residues by microcolumn solid-phase extraction and thermal desorption-ion trap mass spectrometry.

PubMed:Human exposure to urban air pollution.

PubMed:Simple and sensitive quantitation method for mevalonic acid in plasma using gas chromatography/mass spectrometry.

PubMed:Determination of toluenediamine isomers by capillary gas chromatography and chemical ionization mass spectrometry with special reference to the biological monitoring of 2,4- and 2,6-toluene diisocyanate.

PubMed:A comparison of calculated and measured W values in tissue-equivalent gas mixtures.

PubMed:Confirmation of identities of propylene and ethylene glycols in anchovies by tandem mass spectrometry.

PubMed:Effects of target identity and collision energy on the fragmentation of some mass-selected protonated neuropeptides.

PubMed:[Hepatotoxic substances in Brazilian rum].

PubMed:The components of the venom of a spider Scodra griseipes. 2. Structural information on biogenic amines using tandem mass spectrometry.

PubMed:Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning.

PubMed:The components of the venom of a spider Scodra griseipes. 1. Analysis of low molecular weight products using gas chromatography/mass spectrometry.

PubMed:The electron impact, chemical ionization and fast atom bombardment positive ion mass spectra of 1,2-bis(sulfonyl)methylhydrazines.

PubMed:Assay of plasma cannabidiol by capillary gas chromatography/ion trap mass spectroscopy following high-dose repeated daily oral administration in humans.

PubMed:Simultaneous quantitation of cocaine and its major metabolites in human hair by gas chromatography/chemical ionization mass spectrometry.

PubMed:Identification and determination of propafenone and its principal metabolites in human urine using capillary gas chromatography/mass spectrometry.

PubMed:Quantitative analysis of platelet activating factor treated with pentafluorobenzoyl chloride using gas chromatography/negative ion chemical ionization mass spectrometry.

PubMed:Comparison of mass spectral techniques using organic peroxides related to artemisinin.

PubMed:Supercritical fluid extraction of vapor-deposited pyrene from carbonaceous coal stack ash.

PubMed:Role of molecular diffusion in conventional and high frequency ventilation.

PubMed:The use of electron impact and positive chemical ionization mass spectrometry in the screening of beta blockers and their metabolites in human urine.

PubMed:In vitro reactions of glycidol with pyrimidine bases in calf thymus DNA.

PubMed:Biological monitoring of isocyanates and related amines. I. Determination of 1,6-hexamethylene diamine (HDA) in hydrolysed human urine after oral administration of HDA.

PubMed:Mass spectrometric analysis of anatoxin-a.

PubMed:Studies on steroids. CCXXXXV. Determination of 5 beta-cholestanoic acids in human urine by gas chromatography-mass spectrometry with negative ion chemical ionization detection.

PubMed:Quantitation of the benzodiazepine antagonist flumazenil in human plasma by gas chromatography-mass spectrometry.

PubMed:The analysis of trichothecenes in wheat and human plasma samples by chemical ionization tandem mass spectrometry.

PubMed:Microdetermination of glucose content of plasma and its isotopic enrichment using capillary gas chromatography/ammonia chemical-ionization mass spectrometry.

PubMed:Determination of cotinine in urine using glass capillary gas chromatography and selective detection, with special reference to the biological monitoring of passive smoking.

PubMed:Note on ethene and other low-molecular weight hydrocarbons in environmental tobacco smoke.

PubMed:Neopentane as a possible replacement for isobutane in chemical ionization mass spectrometry.

PubMed:Studies on steroids. CCXXXVIII. Determination of bile acids in liver tissue by gas chromatography-mass spectrometry with negative ion chemical ionization detection.

PubMed:Capillary column isobutane chemical ionization mass spectrometry of mustard and related compounds.

PubMed:Leukotriene biosynthesis: direct chemical ionization mass spectrometry of underivatized arachidonic acid metabolites.

PubMed:Fluorometric determination of alpha-ketosuccinamic acid in rat tissues.

PubMed:Gas chromatographic-mass spectrometric determination of ethyl carbamate in alcoholic beverages.

PubMed:Chemical ionization mass spectrometry of valepotriates using isobutane as reactant gas.

PubMed:Studies on steroids. CCXXVIII Trace analysis of bile acids by gas chromatography-mass spectrometry with negative ion chemical ionization detection.

PubMed:In vitro aging of red blood cells and lipid peroxidation.

PubMed:Gas chromatography-mass spectrometry of isobutyl ester trimethylsilyl ether derivatives of bile acids and application to the study of bile sterol and bile acid biosynthesis in rat liver epithelial cell lines.

PubMed:Monitoring exposure to acrylamide by the determination of S-(2-carboxyethyl)cysteine in hydrolyzed hemoglobin by gas chromatography-mass spectrometry.

PubMed:Comparison of electron and chemical ionization mass spectrometry of sialic acids.

PubMed:Ventricular tachycardia associated with non-freon aerosol propellants.

PubMed:Absence of hydrocarbon-induced nephropathy in rats exposed subchronically to volatile hydrocarbon mixtures pertinent to gasoline.

PubMed:Enhanced ethylene and ethane production with free-radical cracking catalysts.

PubMed:Gasoline vapor exposures. Part II. Evaluation of the nephrotoxicity of the major C4/C5 hydrocarbon components.

PubMed:Quantitative determination of tramadol in human serum by gas chromatography-mass spectrometry.

PubMed:Analysis of deuterium labeled blood lipids by chemical ionization mass spectrometry.

PubMed:Correlation between catalytic activity and bonding and coordination number of atoms and molecules on transition metal surfaces: Theory and experimental evidence.

PubMed:Comparison of isopentane and isobutane as chemical ionization reagent gases.

PubMed:Quantitation of cocaine, benzoylecgonine and ecgonine methyl ester by GC-CI-SIM after Extrelut extraction.

PubMed:New type of oxygenase involved in the metabolism of propane and isobutane.

PubMed:Identification of aflatoxins by quadrupole mass spectrometry/mass spectrometry.

PubMed:Phospholipid molecular species quantitation from mass spectra of underivatized lipids.

PubMed:Capillary column gas-liquid chromatography selected ion monitoring assay for [13C, 15N]N-methyltryptamine in human urine: failure to detect conversion of [13C,15N]tryptamine in schizophrenia patients.

PubMed:Analysis of dipeptides in urine by gas chromatography/mass spectrometry: implications for collagen breakdown in iminodipeptiduria following a study of the dipeptides by electron impact and chemical ionization.

PubMed:Chemical-ionization mass spectra of the permethylated sialo-oligosaccharides liberated from gangliosides.

PubMed:The spark discharge synthesis of amino acids from various hydrocarbons.

PubMed:Analysis of deuterated analogs of vitamin A by electron impact and chemical ionization modes in gas chromatography coupled to mass spectrometry.

PubMed:Determination of peptidoaminobenzophenone (2-o-chlorobenzoyl-4-chloro-N-methyl-N'-glycylglycinanilide) and its metabolites in human plasma by capillary gas chromatography negative ion chemical ionization mass spectrometry--2.

PubMed:Determination of peptidoaminobenzophenone (2-o-chlorobenzoyl-4-chloro-N-methyl-N'-glycylglycinanilide) and its metabolites in human plasma by glass capillary gas chromatography negative ion chemical ionization mass spectrometry--1.

PubMed:Metabolism of 4-substituted-N-ethyl-N-methylanilines: chromatographic and mass spectrometric identification of N-oxidation metabolic products formed in vitro.

PubMed:Formation of 6-dimethylcarbamyloxy-dGuo, 6-dimethylamino-dGuo and 4-dimethylamino-dThd following in vitro reaction of dimethylcarbamyl chloride with calf thymus DNA and 6-diethylcarbamyloxy-dGuo following in vitro reaction of diethylcarbamyl chloride with calf thymus DNA.

PubMed:Detection and identification of volatile organic compounds in blood by headspace gas chromatography as an aid to the diagnosis of solvent abuse.

PubMed:Determination of picomole amounts of choline and acetylcholine in blood by gas chromatography-mass spectrometry equipped with a newly improved pyrolyzer.

PubMed:Triamcinolone acetonide spray (reformulated) in the treatment of topical steroid-responsive dermatoses.

PubMed:Sequence analysis of polypeptides by collision activated dissociation on a triple quadrupole mass spectrometer.

PubMed:Use of selected ion monitoring for detection of tuberculostearic and C32 mycocerosic acid in mycobacteria and in five-day-old cultures of sputum specimens from patients with pulmonary tuberculosis.

PubMed:Comparative electron impact, chemical ionization and field desorption mass spectra of some thioether metabolites of acetaminophen.

PubMed:The isolation and characterization of 3-(2-carboxyethyl)cytosine following in vitro reaction of beta-propiolactone with calf thymus DNA.

PubMed:Ammonia gas: an improved reagent for chemical ionization mass spectrometry of bile acid methyl ester acetates.

PubMed:Quantification of arabinitol in serum by selected ion monitoring as a diagnostic technique in invasive candidiasis.

PubMed:Quantitation of fourteen urinary alpha-amino acids using isobutane gas chromatography chemical ionization mass spectrometry with 13C amino acids as internal standards.

PubMed:Identification of steroids by chemical ionization mass spectrometry.

PubMed:Negative chemical ionization studied of human and food chain contamination with xenobiotic chemicals.

PubMed:Esolation of 3-(2-carboxyethyl)thymine following in vitro reaction of beta-propiolactone with calf thymus DNA.

PubMed:In vitro Dimroth rearrangement of 1-(2-carboxyethyl) adenine to N6-(2-carboxyethyl)adenine in single-stranded calf thymus DNA.

PubMed:Chemical ionization mass spectrometry of trimethylsilylated carbohydrates and organic acids retained in uremic serum.

PubMed:Cardenolide analogues: 10--characterization of cardiac glycosides by chemical ionization mass spectrometry.

PubMed:Determination of carprofen in blood by gas chromatography chemical ionization mass spectrometry.

PubMed:A method for the determination of amitriptyline and its metabolites nortriptyline, 10-hydroxyamitriptyline, and 10-hydroxynortriptyline in human plasma using stable isotope dilution and gas chromatography-chemical ionization mass spectrometry (GC-CIMS).

PubMed:Incidence of cocaine metabolites in urine specimens from medical examiners' cases.

PubMed:Screening of organic acids in urine by chemical ionization mass spectrometry.

PubMed:Physiological response to aerosol propellants.

PubMed:Characterization of trimethylsilyl derivatives of cerebrosides by direct inlet-chemical ionization mass spectrometry.

PubMed:Chemical ionization mass spectrometry of the tumor promoter related 4aalpha-phorbol esters.

PubMed:Mass fragmentographic determination of pyrazinamide and its metabolites in serum and urine.

PubMed:Chemical ionization and electron impact mass spectra of oligosaccharides derived from sphingoglycolipids.

PubMed:Acute and repetitive human exposure to isobutane.

PubMed:Characterization of diastereomeric and enantiomeric ephedrines by gas chromatography combined with electron impact mass spectrometry and isobutane chemical ionization mass spectrometry.

PubMed:Combined gas chromatography-chemical ionization mass spectrometry of sphingolipids. I. Glucosyl sphingosine, ceramides and cerebrosides of the spleen in Gaucher's disease.

PubMed:[Detection of organophosphorous pesticide residues in food at the ppb level with open tubular column gas chromatograph-mass spectrometry (author's transl)].

PubMed:Peptide sequencing: the utility of chemical ionization mass spectrometry.

PubMed:The course of ammonia concentration in the rumen fluid of lactating dairy cows after the intake of corn silage with or without added urea or 1.1.-diureido isobutane.

PubMed:Quantitative determination of phenacetin and its metabolite acetaminophen by GLC-chemical ionization mass spectrometry.

PubMed:Chemical ionization mass spectra of phenothiazine derivatives and their oxygenated analogs.

PubMed:Quantitative determination of amitriptyline and its principal metabolite, nortriptyline, by GLC-chemical ionization mass spectrometry.

PubMed:Electron impact and chemical ionization mass spectrometry of some butyrophenones.

PubMed:Diagnosis of disorders in amino acid methabolism by chemical ionization mass spectrometry.

PubMed:Chemical ionization mass spectrometry of polyunsaturated fatty acids of human serum.

PubMed:Chemical ionization and field desorption mass spectrometry of the gentamicins.

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isobutane
propane, 2-methyl-

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isobutane propane, 2-methyl-

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isobutane
propane, 2-methyl-