This method is for the determination of chlordane. The sample is collected on cellulose ester membrane filters with chromosorb sorbent tubes followed by extraction in 10mL toluene. The sample is then analyzed by Gas Chromatography equipped with electron capture detection. The working range is 0.04 to 1.2 mg/m³ for a 120-L sample. Chlordane, accompanied by a mixture of penta-, hexa-, hepta-, and nonachlorinated compounds, is defined by a group of five chromatographic peaks. It is necessary to determine the percentage of Chlordane and its isomers in the standards used. Note: This is NIOSH method S278 in a revised format.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | > 1 week @ 25 °C. |
| Preservatives: | 25°C. |
| Required Preps: | 37-mm, 0.8-µm pore size cellulose ester membrane filter supported by a stainless steel screen in a two-piece filter cassette holder plus a 10 cm x 8-mm OD x 6-mm ID, 20/40 Chromosorb 102 tube 100 mg/50mg. |
| Collection Method: | Mixed cellulose ester membrane filter with chromosorb sorbent tube; 10L to 200L @ 0.5L - 1L/min. |
| Analytical Methodology: | GC/ECD |
| Documentation: | 
5510
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Chlordane | C10H6Cl8 |
57-74-9 |
0.1 |
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.