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Perchlorate Isotope Forensics

Journal Article · · Analytical Chemistry
OSTI ID:1003187
 [1];  [2];  [3];  [3];  [3];  [4];  [5]
  1. U.S. Geological Survey, Reston, VA
  2. University of Illinois, Chicago
  3. ORNL
  4. Tennessee Technological University
  5. University of Nevada, Las Vegas
+ Show Author Affiliations
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 ({sup 37}Cl/{sup 35}Cl and {sup 18}O/{sup 17}O/{sup 16}O) 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.
Research Organization:
Oak Ridge National Laboratory (ORNL)
Sponsoring Organization:
ORNL LDRD Seed-Money
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1003187
Journal Information:
Analytical Chemistry, Journal Name: Analytical Chemistry Vol. 77
Country of Publication:
United States
Language:
English

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Related Subjects

54 ENVIRONMENTAL SCIENCES
FOOD
HUMAN POPULATIONS
ISOTOPES
LEVELS
PERCHLORATES
PLANTS
SOILS
STABLE ISOTOPES
SURFACE WATERS
WATER