SYMPOSIA PAPER Published: 01 January 1986

Performance of USEPA Method for Analysis of 2,3,7,8-Tetrachloro-Dibenzo-p-Dioxin in Soils and Sediments by Contractor Laboratories


The United States Environmental Protection Agency's superfund contractor laboratories use the method found in USEPA IFB WA84-A002 to analyze soil and sediment samples for the specific isomer 2,3,7,8-tetrachloro-dibenzo-p-dioxin. This method uses isotope dilution gas chromatography and mass spectrometry (GC/MS). The precision, accuracy, detection limit, isomer specificity, recovery, and other performance parameters are important in evaluating performance of laboratories and methods. The observed performance of this method in the production-line analysis of thousands of samples by eleven contractor laboratories is presented in this paper.

Author Information

Garner, FC
Homsher, M
Pearson, JG
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Developed by Committee: D34
Pages: 132–142
DOI: 10.1520/STP18439S
ISBN-EB: 978-0-8031-4988-5
ISBN-13: 978-0-8031-0451-8