Optimized Gas Chromatography-Tandem Mass Spectrometry for 1,1'-sulfonylbis[2-(methylthio) ethane] Quantification in Human Urine

Autor: Mesut Ortatatli, Sermet Sezigen, Rusen Koray Eyison, Levent Kenar
Rok vydání: 2019
Předmět:
Zdroj: Journal of chromatographic science. 57(5)
ISSN: 1945-239X
Popis: Sulfur mustard (SM) which is a bifunctional alkylating vesicant is one of the mostly used chemical warfare agent in First World War and the Iran–Iraq War. β-Lyase metabolites of SM especially 1,1′-sulfonylbis[2-(methylthio)ethane] (SBMTE) is an unequivocal biomarker of the exposure. An optimized gas chromatography-tandem mass spectrometry method was developed and validated for the retrospective detection of SBMTE in human urine. Urine samples were treated with acidic titanium trichloride to reduce β-lyase metabolites to the single analyte SBMTE. After neutralization and precipitation, SBMTE was extracted from urine by C8 solid-phase extraction cartridge and analyzed in the multiple-reaction monitoring mode. The lower limit of quantification was 1 ng/mL with relative standard deviation of
Databáze: OpenAIRE
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