Method 1016 is used for the determination of 1,1,1,2-tetrachloro-2,2-difluoroethane and 1,1,2,2-tetrachloro-1,2-difluoroethane by GC/FID. The working range for either analyte is 120 to 1400 ppm (1000 to 12,000mg/m³) for a 2 L air sample. The sample is collected on charcoal sorbent tubes and analyzed by GC/FID after desorption in carbon disulfide. Note: This method combines and revises Methods S131 and S132.
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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: coconut shell charcoal, 100 mg / 50 mg, 7cm x 6mm OD x 4mm ID |
| Collection Method: | Solid sorbent tube: 0.5 - 2 L @ 0.01 - 0.035 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
1016
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| 1,1,2,2 Tetrachloro-2,2-difluoroethane | C2Cl4F2 |
76-11-9 |
0.3 |
mg |
| 1,1,2,2-Tetrachloro-1,2-difluoroethane | C2Cl4F2 |
76-12-0 |
0.3 |
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.