OSHA Method ID-133SG: Selenium
Description
The sample is collected on a 0.8-µm AA cellulose filter. The filters are ashed with concentrated HNO3, 1000 ppm nickel, and HCl to destroy the organic matrix and dissolve the metal. The samples are diluted using deionized water and the samples and standards are injected into the graphite furnace to determine the sample concentration.
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