The filter is digested with nitric and perchloric acids to destroy the filters and any organic material. The analyte is then solubilized in a nitric acid solution, and pipetted into a graphite furnace of an atomic absorption spectrophotometer for determination of concentration. ... an accuracy of _+ 5% over the range of 1.0 to 2.0 liters per minute; a 37-mm three-piece cassette filter holder and a 37-mm diameter/ 0.
Title | : | NIOSH manual of sampling data sheets |
Author | : | National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering |
Publisher | : | - 1977 |
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