This method is for the collection and analysis of 2-Methoxyethanol (2ME), 2-Methoxyethanol Acetate (2MEA), 2-Ethoxyethanol (2EE), and 2-Ethoxyethanol Acetate (2EEA). Samples are collected by drawing known volumes of air through charcoal tubes. Samples are desorbed with 95/5 (v/v) methylene chloride/ methanol and analyzed by gas chromatography using a flame ionization detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Up to 15 days. |
| Preservatives: | Samples for 2MEA and 2EEA should be refrigerated upon receipt by the laboratory to minimize hydrolysis. |
| Required Preps: | Solid sorbent tubes: coconut shell charcoal; 100mg/50mg 7cm x 6mmOD x 4mmID. |
| Collection Method: | Solid sorbent tube: coconut shell charcoal: 10 L at 0.1 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
053
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| 2-Methoxyethanol | C3H8O2 |
109-86-4 |
3.1 |
µg |
| Methyl Cellosolve Acetate | C5H10O3 |
110-49-6 |
0.48 |
µg |
| 2-Ethoxyethanol | C4H10O2 |
110-80-5 |
0.56 |
µg |
| 2-Ethoxyethyl Acetate | C6H12O3 |
111-15-9 |
0.55 |
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.