Gas chromatography - tandem mass spectrometry

Simultaneous analysis of neutral and acidic pharmaceuticals as well as related compounds by gas chromatography-tandem mass spectrometry in wastewater. Talanta 73 314-320... [Pg.224]

Sheridan RS, Meola JR. 1999. Analysis of pesticide residues in fruits, vegetables, and milk by gas chromatography/tandem mass spectrometry. J AOAC Int 82(4) 982-990. [Pg.230]

A new technique has been developed to analyze a- and (3-endosulfan concentrations in human urine (Vidal et al. 1998). Samples are mixed with a buffer solution and then passed through solid phase extraction cartridges for analysis using gas chromatography-tandem mass spectrometry (GC-MS-MS). [Pg.249]

Vidal JEM, Arrebola PJ, Pemandez-Gufierrez A, et al. 1998. Determination of endosulfan and its metabolites in human urine using gas chromatography-tandem mass spectrometry. J Chromatogr 719 71-78. [Pg.317]

Confirmation of suspected residue findings relies on the various chromatographic principles of cleanup and determination (GPC, NP-LC, GC), and is further supported by re-analysis of the final extract(s) on a GC stationary phase of different polarity, providing modified selectivity, or by the use of GC with specific mass spectrometric detection [GC/MS or gas chromatography/tandem mass spectrometry (GC/MS/MS)]. [Pg.56]

MS detection does not necessarily require as highly resolved GC separations as in the case of selective detectors because the likelihood of an overlapping mass spectral peak among pesticides with the same retention time is less than the likelihood of an overlapping peak from the same element. Unfortunately, this advantage cannot always be optimized because SIM and current gas chromatography/tandem mass spectrometry (GC/MS/MS) methods, it is difficult to devise sequential SIM or MS/MS retention time windows to achieve fast GC separations for approximately > 50 analytes in a single method. [Pg.762]

Fox, A. Wright, L. Fox, K. Gas chromatography-tandem mass spectrometry for trace detection of muramic acid, a peptidoglycan marker in organic dust. I. Microbiol. Meth. 1995, 22,11-26. [Pg.34]

DAGAN, S., Comparison of gas chromatography-pulsed flame photometric detection-mass spectrometry, automated mass spectral deconvolution and identification system and gas chromatography-tandem mass spectrometry as tools for trace level detection and identification, J. Chromatogr., A., 2000,868,229-247. [Pg.59]

Bartels, M.J. Quantitation of the Tetra-chloroethylene Metabolite A-Acetyl-5-(trichlorovinyl)cysteine in Rat Urine Via Negative Ion Chemical Ionization Gas Chromatography/Tandem Mass Spectrometry. Biol. Mass Spectrom. 1994, 23, 689-694. [Pg.353]

Wang H, Zhang J, Gao P, Yang Y, Duan H, Wu Y, Berset JD, Shao B (2011) Simultaneous analysis of synthetic musks and triclosan in human breast milk by gas chromatography tandem mass spectrometry. J Chromatogr B 879 1861-1869... [Pg.297]

Schindler BK, Foerster K, Angerer J (2009a) Determination of human urinary organophosphate flame retardant metabolites by solid-phase extraction and gas chromatography-tandem mass spectrometry. J Chromatogr B 877 375-381... [Pg.304]

Kozar, M., Laman, J. D., and Fox, A. (2002), Muramic acid is not generally present in human spleen as determined by gas chromatography-tandem mass spectrometry, Infect. Immun., 70,741-748. [Pg.541]

Alvin Fox, University of South Carolina, Columbia, South Carolina, Quantitation of Markers for Gram-Negative and Gram-Positive Endotoxins in Work Environment and as Contaminants in Pharmaceutical Products Using Gas Chromatography-Tandem Mass Spectrometry... [Pg.852]

Lamouroux, C., Virelizier, H., Moulin, C., Jankowski, C.K. 2001. Application of gas chromatography-tandem mass spectrometry to the analysis of inhibition of dimerisa-tion of tributylphosphate under radiolysis. Identification of isomeric tributylphosphate-alkylbenzene inhibitor coupling products. J. Chromatogr. A 917 261-275. [Pg.497]

Goncalves, C. and M.F. Alpendurada (2004). Solid-phase micro-extraction-gas chromatography-tandem mass spectrometry as a tool for pesticide residue analysis in water samples at high sensitivity and selectivity with confirmation capabilities. J. Chromatogr. A, 1026 239-250. [Pg.265]

Salado-Petinal, C., M. Garcia-Chao, M. Llompart, C. Garcia-Jares, and R. Cela. 2006. Headspace solid-phase microextraction gas chromatography tandem mass spectrometry for the determination of bromi-nated flame retardants in environmental solid samples. Anal. Bioanal. Chem. 385 637-644. [Pg.470]

Wu, H., Haig, T., Pratley, J., Lemerle, D., and An, M. 1999. Simultaneous determination of phenolic acids and 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one in wheat (Triticum aestivum L.) by gas chromatography-tandem mass spectrometry. J. Chromatogr. A 864, 315-321... [Pg.114]

R.M. Black, R.J. Clarke, R.W. Read and M.T.J. Reid, Application of gas chromatography-mass spectrometry and gas chromatography-tandem mass spectrometry to the analysis of chemical warfare samples, found to contain residues of the nerve agent sarin, sulfur mustard and their degradation products, J. Chromatogr., A, 662, 301-331 (1994). [Pg.280]

R.M. Black and R.W. Read, Improved methodology for the detection and quantitation of urinary metabolites of sulfur mustard using gas chromatography-tandem mass spectrometry, J. Chromatogr., B, 665, 97-196 (1995). [Pg.281]

W.J. Driskell, M. Shih, L.L. Needham and D.B. Barr, Quantitation of organophosphorus nerve agent metabolites in human urine using isotope dilution gas chromatography-tandem mass spectrometry, J. Anal. Toxicol., 26, 6-10 (2002). [Pg.281]

Figure 6. GC/MS/SIM (upper) and GC/MS/MS/MRM (lower) chromatograms for reduced f5-lyase metabohtes, showing a >50-fold improvement in signal-to-noise ratio using GC/MS/MS. (Reprinted from Journal of Chromatography B, 665, R.M. Black and R.W. Read, Improved methodology for the detection and quantitation of urinary metabohtes of sulphur mustard using gas chromatography-tandem mass spectrometry, pp. 97-105 (1995), with permission from Elsevier)...

For the accurate interpretation of a positive hair analysis result, it is necessary to subject hair to specially developed wash and extraction procedures. During the development of these procedures, we discovered several important properties of hair, properties which were essential for defining three unique wash kinetic criteria and their cutoff levels which, in conjunction with washing, enhance the acciuacy of the interpretation of a positive hair analysis result. Additional certainty can be achieved by the measurement of metabolites or metabolite/drug ratios, by the development of ultrasensitive gas chromatography/tandem mass spectrometry (GC/MS/MS) or ion... [Pg.226]

Orozco-Solano, M. Ruiz-Jimenez, J. Luque de Castro, M.D. 2010. Ultrasound-assisted extraction and derivatization of sterols and fatty alcohols from olive leaves and drupes prior to determination by gas chromatography-tandem mass spectrometry. J. Chromatogr. A 1217 1227-1235. [Pg.65]

Lin, Y.P., Pessah, I.N., Puschner, B. Simultaneous determination of polybrominated diphenyl ethers and polychlorinated biphenyls by gas chromatography-tandem mass spectrometry in human serum and plasma. Talanta 113, 41 (2013)... [Pg.180]

Fernandes, V.C., Subramanian, V., Mateus, N., Domingues, V.F., Deleme-Matos, C. The development and optimization of a modified single-drop microextraction method for organo-chlorine pesticides determination by gas chromatography-tandem mass spectrometry. Microchim. Acta 178, 195-202 (2012)... [Pg.423]

Leyssens, L. Driessen, C. Jacobs, A. Czech, J. Raus, J. Determination of beta-2-receptor agonists in bovine urine and liver by gas-chromatography tandem mass-spectrometry. J. Chromatogr. 1991, 564, 515 -527. [Pg.76]

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