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A survey of liquid chromatographic-mass spectrometric analysis of mercapturic acid biomarkers in occupational and environmental exposure monitoring.

Authors
Mathias-PI; B'Hymer-C
Source
J Chromatogr B 2014 Aug; 964:136-145
NIOSHTIC No.
20044275
Abstract
High-performance liquid chromatography/mass spectrometry (HPLC/MS) is sensitive and specific for targeted quantitative analysis and is readily utilized for small molecules from biological matrices. This brief review describes recent selected HPLC/MS methods for the determination of urinary mercapturic acids (mercapturates) which are useful as biomarkers in characterizing human exposure to electrophilic industrial chemicals in occupational and environmental studies. Electrophilic compounds owing to their reactivity are used in chemical and industrial processes. They are present in industrial emissions, are combustion products of fossil fuels, and are components in tobacco smoke. Their presence in both the industrial and general environments are of concern for human and environmental health. Urinary mercapturates which are the products of metabolic detoxification of reactive chemicals provide a non-invasive tool to investigate human exposure to electrophilic toxicants. Selected recent mercapturate quantification methods are summarized and specific cases are presented. The biological formation of mercapturates is introduced and their use as biomarkers of metabolic processing of electrophilic compounds is discussed. Also, the use of liquid chromatography/tandem mass spectrometry in simultaneous determinations of the mercapturates of multiple parent compounds in a single determination is considered, as well as future trends and limitations in this area of research.
Keywords
Laboratory-equipment; Laboratory-techniques; Liquid-chromatography; Chromatographic-analysis; Mass-spectrometry; Acids; Biomarkers; Environmental-exposure; Workplace-monitoring; Quantitative-analysis; Urinalysis; Chemical-analysis; Author Keywords: Liquid chromatography; Mass spectrometry; Occupational exposure; Industrial chemicals; Urinary biomarker; Mercapturic acid
Contact
Patricia I. Mathias, National Institute for Occupational Safety and Health, Divisionof Applied Science and Technology, Robert A. Taft Laboratories, 4676 Columbia Parkway, Cincinnati, OH 45226, USA
CODEN
JCBAAI
CAS No.
616-91-1
Publication Date
20140801
Document Type
Journal Article
Email Address
pmathias@cdc.gov
Fiscal Year
2014
NTIS Accession No.
NTIS Price
Identifying No.
M052014
ISSN
1570-0232
NIOSH Division
DART
Priority Area
Services
Source Name
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
State
OH
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