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Start Over Descriptor "Environmental pollution" Journal environmental science and pollution research
1,064 results on '"Environmental pollution"'

32. Authentication of synthetic environmental contaminants and their (bio)transformation products in toxicology: polychlorinated biphenyls as an example

Author

Li, Xueshu, Holland, Erika B, Feng, Wei, Zheng, Jing, Dong, Yao, Pessah, Isaac N, Duffel, Michael W, Robertson, Larry W, and Lehmler, Hans-Joachim

Subjects
Environmental Sciences, Pollution and Contamination, Chemical Sciences, Generic health relevance, Environmental Pollution, Polychlorinated Biphenyls, Risk Assessment, Authentication, Congener specific analysis, Gas chromatography, Polychlorinated biphenyls, Reproducibility, Scientific rigor, Purity, Biological Sciences
Abstract

Toxicological studies use "specialty chemicals" and, thus, should assess and report both identity and degree of purity (homogeneity) of the chemicals (or toxicants) under investigation to ensure that other scientists can replicate experimental results. Although detailed reporting criteria for the synthesis and characterization of organic compounds have been established by organic chemistry journals, such criteria are inconsistently applied to the chemicals used in toxicological studies. Biologically active trace impurities may lead to incorrect conclusions about the chemical entity responsible for a biological response, which in turn may confound risk assessment. Based on our experience with the synthesis of PCBs and their metabolites, we herein propose guidelines for the "authentication" of synthetic PCBs and, by extension, other organic toxicants, and provide a checklist for documenting the authentication of toxicants reported in the peer-reviewed literature. The objective is to expand guidelines proposed for different types of biomedical and preclinical studies to include a thorough authentication of specialty chemicals, such as PCBs and their derivatives, with the goal of ensuring transparent and open reporting of scientific results in toxicology and the environmental health sciences.

Published
2018

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