This method describes the sample collection and analysis of 2-butanone (MEK). Samples are collected by drawing air through glass sampling tubes containing Carbosieve S-III (carbon based molecular sieve) adsorbent. Samples are desorbed with a mixture of 99/1 (v/v) carbon disulfide (CS2)/dimethylformamide (DMF) in the presence of anhydrous sodium sulfate and are analyzed by GC using a flame ionization detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 17 days. |
| Preservatives: | Store at room temperature. |
| Required Preps: | Samples are collected on sampling tubes packed with two sections of 60/80 mesh Carbosieve S-III ; 7cm x 6mmOD x 4mmID with 130mg/65mg adsorbent. |
| Collection Method: | Carbon based molecular sieve: 3 L at 0.05 L/min. |
| Analytical Methodology: | GC/FID. |
| Documentation: | 
084
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Methyl ethyl ketone (2-Butanone) | C4H8O |
78-93-3 |
0.707 |
µg |
* 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.