SYMPOSIA PAPER Published: 01 January 1990
STP18968S

Validation of Methods for Determining Elements in Solid Waste by Microwave Digestion

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The techniques which are typically used to prepare RCRA wastes for analysis for metals and other elements are generally relatively time consuming, requiring several hours to several days to complete. They also often involve the use of acid digestions and thermal decomposition steps which may result in analyte losses, incomplete recoveries, or sample contamination. These limitations are well known to the analytical community and to the end users of these data in EPA, States, and industry. The resulting inefficiency of these techniques reduces laboratory sample throughput, drives up the cost of analytical testing, and impedes decision making. Given these concerns, the OSW Methods Section is interested in developing cost effective sample preparation techniques for metals and other elements in environmental and process waste samples. Once developed, these techniques can then be written as methods for inclusion in Test Methods for Evaluation of Solid Waste SW-846 and made available to the user community. This paper reports on the evaluation of a microwave assisted sample preparation method for determining elements in solid waste. The Method was evaluated for microwave digestion of sediments, sludges, soils, and oils.

Author Information

Binstock, DA
Grohse, PM
Gaskill, A
Luk, KK
Swift, PL
Kingston, HM
Sellers, C
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Details
Developed by Committee: D34
Pages: 259–270
DOI: 10.1520/STP18968S
ISBN-EB: 978-0-8031-5123-9
ISBN-13: 978-0-8031-1293-3