Method 26

Methyl mercaptan

This method is for the collection and analysis of methyl mercaptan. Samples are collected on glass fiber filters impregnated with mercuric acetate. Methyl mercaptan is regenerated from the mercuric mercaptide, formed during sampling, by treatment with hydrochloric acid. The methyl mercaptan is extracted into methylene chloride and analyzed by gas chromatography with a flame photometric detector.



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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   At least 15 days.
Preservatives:   Samples should be protected from light until analyzed. Store at room temperature.
Required Preps:   Glass fiber filters impregnated with mercuric acetate.
Collection Method:   Treated glass fiber filter: 20 L at 0.2 L/min.
Analytical Methodology:   GC/FPD
Documentation:   026

Analyte List*

Analyte Formula CAS Number Detection Limit
Methyl mercaptan

* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.