This method is used for the detection of endrin. The sample is collected on cellulose ester membrane filters, extracted with toluene, and analyzed by GC with Ni electron capture detection. The working range is 0.01 to 0.33 mg/m³ for a 120 L air sample. Smaller concentrations can be detected if the desorption efficiency is satisfactory. The use of a capillary column, e.g., DB-1, may improve resolution and sensitivity. NOTE: This is a modification of the method of Hill and Arnold, and it replaces NIOSH Method S284.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 1 week @ 25 °C |
| Preservatives: | 25 °C |
| Required Preps: | Filter and solid sorbent tube: 0.8 µm cellulose ester membrane and chromosorb 102, 100mg/50mg. |
| Collection Method: | Filter and solid sorbent tube: 12L to 400 L @ 0.5 to 1L/min. |
| Analytical Methodology: | GC 63Ni ECD |
| Documentation: | 
5519
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Endrin | C12H8Cl6O |
72-20-8 |
0.02 |
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.