This method is used for the determination of 1,1,2,2-tetrabromomethane. The sample is collected on silica sorbent tubes, desorbed in tetrahydrofuran, and analyzed by GC/FID. The working range is 0.5 to 2.8 ppm (7 to 40 mg/m³) for a 100 L air sample. High humidity during sampling will reduce the breakthrough volume. NOTE: This is Method S117 in a revised format.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Not noted in method |
| Preservatives: | Not noted in method |
| Required Preps: | Solid sorbent tube: silica gel, 150 mg/75 mg, 7cm x 6mm OD x 4 mm ID |
| Collection Method: | Solid sorbent tube: 50 - 100 L @ 0.2 - 1 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2003
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| 1,1,2,2-Tetrabromoethane | C2H2Br4 |
79-27-6 |
0.08 |
mg |
* 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.