This method is for the determination of nitromethane. The sample is collected on Chromosorb 106 sorbent tubes, desorbed in 5 mL of ethyl acetate, and analyzed by GC/NPD. The working range is 60 to 360 ppm (150 to 900 mg/m³) for a 2 L air sample. NOTE: This method revises Method S220.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Stable 7 days from sampling to analysis if kept at 25°C |
| Preservatives: | Store at room temperature (25°C) and separate front and back sorbent sections during shipment. |
| Required Preps: | Solid sorbent tubes: Chromosorb 106, 600 mg/300 mg, 10cm x 10mm OD x 8mm ID |
| Collection Method: | Solid sorbent tube: 1.2 - 3 L @ 0.01 - 0.05 L/min. |
| Analytical Methodology: | GC/NPD |
| Documentation: | 
2527
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Nitromethane | CH3NO2 |
75-52-5 |
0.15 |
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.