Quantitation of five organophosphorus nerve agent metabolites in serum using hydrophilic interaction liquid chromatography and tandem mass spectrometry

Details

• Alternative Title:
  Anal Bioanal Chem
• Personal Author:
  Hamelin, Elizabeth I. ; Schulze, Nicholas D. ; Shaner, Rebecca L. ; Coleman, Rebecca M. ; Lawrence, Richard J. ; Crow, Brian S. ; Jakubowski, E. M. ; Johnson, Rudolph C.
• Description:
  Although nerve agent use is prohibited, concerns remain for human exposure to nerve agents during decommissioning, research, and warfare. Exposure can be detected through the analysis of hydrolysis products in urine as well as blood. An analytical method to detect exposure to five nerve agents, including VX, VR (Russian VX), GB (sarin), GD (soman), and GF (cyclosarin), through the analysis of the hydrolysis products, which are the primary metabolites, in serum has been developed and characterized. This method uses solid-phase extraction coupled with high-performance liquid chromatography for separation and isotopic dilution tandem mass spectrometry for detection. An uncommon buffer of ammonium fluoride was used to enhance ionization and improve sensitivity when coupled with hydrophilic interaction liquid chromatography resulting in detection limits from 0.3 to 0.5 ng/mL. The assessment of two quality control samples demonstrated high accuracy (101-105%) and high precision (5-8%) for the detection of these five nerve agent hydrolysis products in serum.
• Subjects:
  Article Biotransformation Buffers Chemical Warfare Agents Chromatography, High Pressure Liquid Exposure Fluorides Humans Hydrophobic And Hydrophilic Interactions In Vitro Techniques Limit Of Detection Metabolites Organophosphorus Compounds Organophosphorus Nerve Agents Organothiophosphorus Compounds Quaternary Ammonium Compounds Sarin Serum Solid Phase Extraction Soman Tandem Mass Spectrometry

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• Source:
  Anal Bioanal Chem. 406(21):5195-5202.
• Pubmed ID:
  24633507
• Pubmed Central ID:
  PMC4595930
• Document Type:
  Journal Article
• Funding:
  EPH3/Intramural CDC HHS/United States
• Volume:
  406
• Issue:
  21
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:8e691f138379328db6c5c7ac95b065874d5dff4861e322f6e48c2cfd6a387c0f
• Download URL:
  https://stacks.cdc.gov/view/cdc/34837/cdc_34837_DS1.pdf
• File Type:
  [PDF - 618.82 KB ]