Perchlorate isotope forensics

Analytical Chemistry
By: , and 

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Abstract

Perchlorate has been detected recently in a variety of soils, waters, plants, and food products at levels that may be detrimental to human health. These discoveries have generated considerable interest in perchlorate source identification. In this study, comprehensive stable isotope analyses (37Cl/35Cl and 18O/17O/16O) of perchlorate from known synthetic and natural sources reveal systematic differences in isotopic characteristics that are related to the formation mechanisms. In addition, isotopic analyses of perchlorate extracted from groundwater and surface water demonstrate the feasibility of identifying perchlorate sources in contaminated environments on the basis of this technique. Both natural and synthetic sources of perchlorate have been identified in water samples from some perchlorate occurrences in the United States by the isotopic method.

Publication type Article
Publication Subtype Journal Article
Title Perchlorate isotope forensics
Series title Analytical Chemistry
DOI 10.1021/ac051360d
Volume 77
Issue 23
Year Published 2005
Language English
Publisher ACS
Contributing office(s) Toxic Substances Hydrology Program
Description 5 p.
First page 7838
Last page 7842
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