This method is used for the determination of tributyl phosphate. The sample is collected on cellulose membrane filters, desorbed with diethyl ether, and analyzed by GC-FDP with a phosphorous filter. The working range is 0.006 to 1.4 ppm (0.06 to 15 mg/m³) for a 100 L air sample. This method may be adapted to other phosphates of relatively low volatility with appropriate changes in chromatographic conditions. NOTE: This revises method S208.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Not determined |
| Preservatives: | Not determined |
| Required Preps: | Filter: 37-mm diameter, 0.8µm pore size, cellulose ester membrane. |
| Collection Method: | Filter; 2L to 100 L @ 1 to 3 L/min |
| Analytical Methodology: | GC/FDP with a phosphorous filter |
| Documentation: | 
5034
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Tri-n-butylphosphate | C12H27O4P |
126-73-8 |
0.01 |
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.