Gas chromatography/negative chemical ionization mass spectrometry

Buser HR (1976), Anal. Chem. 58 2913-2919.. .Selective detection of brominated aromatic compounds using gas chromatography/negative chemical ionization mass spectrometry"... [Pg.76]

Lai B-W, Liu B-M, Mahk PK, Wu H-F. Combination of liquid-phase hollow fiber membrane microextraction with gas chromatography-negative chemical ionization mass spectrometry for the determination of dichlorophenol isomers in water and urine. Anal Chim Acta 2006 576(1) 61-66. [Pg.274]

Derivatization is also useful to detect volatile metabolites. Liu et al. [282] described a specific, rapid, and sensitive in situ derivatization solid-phase microextraction (SPME) method for determination of volatile trichloroethylene (TCE) metabolites, trichloroacetic acid (TCA), dichloroacetic acid (DCA), and trichloroethanol (TCOH), in rat blood. The metabolites were derivatized to their ethyl esters with acidic ethanol, extracted by SPME and then analyzed by gas chromatography/negative chemical ionization mass spectrometry (GC-NCI-MS). After validation, the method was successfully applied to investigate the toxicokinetic behavior of TCE metabolites following an oral dose of TCE. Some of the common derivatization reagents include acetyl chloride and TV-methyl-iV- ft-b u (y Idi methyl si I y I) tro (1 uoroacctam i nc (MTBSTFA) for phenols and aliphatic alcohols and amines, dansyl chloride and diazomethane for phenols, dansyl chloride for amines, acidic ethanol and diazomethane for carboxylic acids, and hydrazine for aldehydes. [Pg.172]

Collins, C., Awada, M.M., Zhou, X., and Dedon, P.C. (2003) Analysis of 3 -phosphoglycolaldehyde residues in oxidized DNA by gas chromatography/ negative chemical ionization/mass spectrometry. Chem. Res. Toxicol, 16, 1560-1566. [Pg.47]

Russo. M. V., Capanclla. L.. and Avino. P. (2002). Deiermination of organophosphorous pesticide residues in human lis.sues by capillaiy gas chromatography-negative chemical ionization mass spectrometry analysis. J. Chromaiogr. B Anal. Technoi. Biomed. Ufe Sci. 780, 431-441. [Pg.700]

Plasma by Gas Chromatography Negative Chemical Ionization Mass Spectrometry... [Pg.154]

Determination of an Antisecretory Trimethyl Prostaglandin E2 Analog in Human Plasma by Combined Capillary Column Gas Chromatography-Negative Chemical Ionization Mass Spectrometry... [Pg.296]

Quantitative Analysis of 6-Hydroxy-melatonin in Human Urine by Gas Chromatography-Negative Chemical Ionization Mass Spectrometry Anal. Biochem. 110(1) 208-215 (1981) CA 94 135205g... [Pg.300]

Microwave-assisted extraction coupled with gas chromatography-electron capture negative chemical ionization mass spectrometry (i. e., MAE-GC-EC-NCI-MS) was described for the simplified determination of imidazolinone herbicides in soil at the ppb level [715]. [Pg.88]

Kim Y-S, Zhang H, Kim H-Y. 2000. Profiling neurosteroids in cerebrospinal fluids and plasma by gas chromatography/ electron capture negative chemical ionization mass spectrometry. Anal Biochem 277 187. [Pg.14]

Miles WF, Gurprasad NP, Malis GP (1985), Anal. Chem. 57 1133-1138. Isomer-specific determination of hexachlorodibenzo-p-dioxins by oxygen negative chemical ionization mass spectrometry, gas chromatography, and high-pressure liquid chromatography"... [Pg.76]

Rouzer CA, Chaudhary AK, Nokubo M, Ferguson DM, Reddy GR, Blair lA, Marnett LJ. Analysis of the malondialdehyde-2 -deoxyguanosine adduct pyrimidopurinone in human leukocyte DNA by gas chromatography/electron capture/negative chemical ionization/mass spectrometry. Chem Res Toxicol 1997 10 181-188. [Pg.681]

Huskova, R., Matisova, E., Hrouzkova, S., and Svorc, L. 2009. Analysis of pesticide residues by fast gas chromatography in combination with negative chemical ionization mass spectrometry. J. Chromatogr. A 1216 6326-6334. [Pg.49]

Colhn, O.L., et al. (2009) Fast gas chromatography negative chemical ionization tandem mass spectrometry of explosive compounds using dynamic colhsion-induced dissociation. International Journal of Mass Spectrometry, 279, 93-99. [Pg.475]

Determination of Flurazepam in Human Plasma by Gas Chromatography-Electron Capture Negative Chemical Ionization Mass Spectrometry Anal. Chem. 53(6) 793-797 (1981) ... [Pg.296]

MP Heyes, SP Markey. Quantification of quinolinic acid in rat brain, whole blood, and plasma by gas chromatography and negative chemical ionization mass spectrometry effects of systemic L-tryptophan administration on brain and blood quinolinic acid concentrations. Anal Biochem 174 349-359, 1988. [Pg.373]

Carrizo D, Grimalt JO (2006) Rapid and simplified method for the analysis of polychlor-onaphthalene congener distributions in environmental and human samples by gas chromatography coupled to negative ion chemical ionization mass spectrometry. J Chromatogr A 1118(2) 271-277... [Pg.165]

Hubbard WC, Bickel C, Schleimer RP. 1994. Simultaneous quantitation of endogenous levels of cortisone and cortisol in human nasal and bronchoalveolar lavage fluids and plasma via gas chromatography-negative ion chemical ionization mass spectrometry. Anal Biochem 221 109-117. [Pg.190]

Korfmacher WA, Rushing LG, Siitonen PH, et al. 1987. Confirmation of heptachlor epoxide and octachlor epoxide in milk via fused silica gas chromatography/negative ion chemical ionization mass spectrometry. J High Resolut Chromatogr Commun 10 332-336. [Pg.139]

EC = electron capture detection FID = flame ionization detector GC = gas chromatography hexa = hexabrominated biphenyl HRGC = high resolution gas chromatography HRMS= high resolution mass spectrometry LC = liquid chromatography MS = mass spectrometry NCI = negative chemical ionization RED = plasma emission detection PBBs = polybrominated biphenyls... [Pg.393]

S.-A.A. Fredriksson, L.-G. Hammarstrom, L. Henriksson and H.-A.A. Lakso, Trace determination of alkyl methylphosphonic acids in environmental and biological samples using gas chromatography/negative-ion chemical ionization mass spectrometry and tandem mass spectrometry, J. Mass Spectrom., 30, 1133-1143 (1995). [Pg.281]

Oehme M, Kirschmer P (1984), Anal. Chem. 56 2754-2759. Isomer-selective determination of tetrachlorinated dibenzo-p-dioxins using hydroxyl negative ion chemical ionization mass spectrometry combined with high resolution gas chromatography"... [Pg.77]

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