This method is for the determination of isopropyl ether. The sample is collected on charcoal sorbent tubes, desorbed with carbon disulfide, and analyzed by GC/FID. The working range is 3 to 1170 ppm (16 to 4900 mg/m³) for a 3 L air sample. An appropriate capillary column may be used for better resolution and sensitivity. The sorbent's capacity for the analyte has not been determined under conditions of high relative humidity. Note: This is Method S368 in a revised format.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 5 days from sampling to analysis if kept at 25°C |
| Preservatives: | Store at 25°C. |
| Required Preps: | Solid sorbent tube: coconut shell charcoal, 100 mg/50 mg, 7 cm X 6 mm OD x 4 mm ID |
| Collection Method: | Solid sorbent tube: 0.1 - 3 L @ 0.01 - 0.05 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
1618
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Diisopropyl ether | C6H14O |
108-20-3 |
0.01 |
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.