This method is for the collection and analysis of stibine from wokplace air. The sample is collected on a mercuric clhoride coated silica gel tube. After collection, the sample is extraction with concentrated HCl and analyzed by visible spectrophotometry. Stibine is analyzed as antimony (Sb).
The working range of the method is 0.1 to 3.5 mg/m3 (0.02 to 0.7 ppm) for a 20L sample.
NOTE: This method revised Method S243.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 7 days from sample collection to analysis if samples kept at 25°C. |
| Preservatives: | Keep samples at 25°C. |
| Required Preps: | Mercuric chloride treated silica gel tube, 1/0.5g |
| Collection Method: | The method recommends a 0.01 - 0.2 L/min. flow rate with a 4 - 50L sample collection volume. |
| Analytical Methodology: | Spectrophotometry |
| Documentation: | 
6008
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Stibine | H3Sb |
7803-52-3 |
0.4 |
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.