Method 1014

Methyl Iodide by GC/FID

This method is used for the determination of methyl iodide. The sample is collected on charcoal sorbent tubes, is desorbed in toluene and allowed to stand for 8 hours prior to analysis by GC/FID. The working range of this method is 10 to 100 mg/m³ (1.7 to 17ppm) for a 50 L air sample. High humidity during sampling will decrease breakthrough volume. Note: This method revises Method S98.

(NIOSH Issue 2: 15 August 1994)


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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   Not noted in method
Preservatives:   Not noted in method
Required Preps:   Solid sorbent tube: coconut shell charcoal, 100 mg / 50 mg, 7cm x 6mm OD x 4mm ID
Collection Method:   Solid sorbent tube: 15 - 50 L @ 0.01 - 1 L/min.
Analytical Methodology:   GC/FID
Documentation:   1014

Analyte List*

Analyte Formula CAS Number Detection Limit
Methyl iodide

* 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.