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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Publication Detail

Title: Sample preparation method for metal(loid) contaminant quantitation in rodent hair collected in Yuma County, Arizona.

Authors: Credo, Jonathan; Chandos, Amy; Checinski, Camilla; von Hippel, Frank A; Ingram, Jani C

Published In Environ Monit Assess, (2021 Jul 27)

Abstract: Yuma County, Arizona, is a large agricultural hub of the USA located in the southwestern corner of Arizona on the USA-Mexico border. Year-round use of agrichemicals at a massive scale along with the influx of aquatic contaminants in the Colorado River led to significant levels of environmental pollution and hence exposure risks for people and wildlife. Although hair is a recognized biomarker for metal exposure, there is no universal hair preparation protocol. This study evaluated two digestion methods for metal quantitation using inductively coupled plasma-mass spectrometry (ICP-MS) and three methods for mercury quantitation using cold vapor-atomic absorption spectroscopy (CV-AAS), both employing certified reference materials. The "overnight" and "heating" digestion methods were suitable for ICP-MS, while only the heating method was suitable for CV-AAS. These validated methods will be useful for a variety of human and wildlife assessments of toxic metal(loid) exposure.

PubMed ID: 34313833 Exiting the NIEHS site

MeSH Terms: No MeSH terms associated with this publication

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