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EPA METHOD STUDY 8, TOTAL MERCURY IN WATER
Citation:
Winter, J., P. Britton, H. Clements, AND R. Kroner. EPA METHOD STUDY 8, TOTAL MERCURY IN WATER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/4-77/012 (NTIS PB266270), 1977.
Description:
The Environmental Monitoring and Support Laboratory-Cincinnati of EPA conducts EPA's quality assurance program for the water laboratories and assists EPA laboratories in the choice of methods for physical, chemical, biological and microbiological analyses. The responsibility for quality assurance activities of EMSL is assigned to the Quality Assurance Branch (QAB). This study, one of the QAB activities, describes a joint EPA/ASTM evaluation study of a method of analysis for total mercury in natural water and wastewaters. The method includes an acid-permanganate-persulfate digestion followed by reduction and measurement of mercury in the vapor phase at 253.7 nm. This report describes the study, its conclusions and provides statements of precision and accuracy.