This method is used for the determination of nitroglycerin and ethylene glycol dinitrate. The sample is collected on a Tenax-GC solid sampler tube and desorbed in 2 mL ethanol for 30 minutes. The sample is then analyzed by GC/ECD. This method is applicable to the simultaneous determination of nitroglycerin and ethylene glycol dinitrate (EGDN). The working range for both compounds is 0.02 to 0.3 ppm ( 0.2 to 3 mg/m³) for a 15 L air sample, provided that the linear range of the ECD is not exceeded. NOTE: This method combines and replaces Methods S216 and P&CAM 203.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 25 days sampling to analysis if kept at 25°C |
| Preservatives: | Store at 25°C. |
| Required Preps: | Solid sampler tube: Tenax-GC resin, 100 mg/50 mg, 10cm x 8mm OD x 6mm ID |
| Collection Method: | Solid sampler tube: 3 - 100 L @ 0.2 - 1 L/min. |
| Analytical Methodology: | GC/ECD |
| Documentation: | 
2507NIT
2507EGDN
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Nitroglycerin | C3H5N3O9 |
55-63-0 |
0.6 |
µg |
| Ethylene Glycol Dinitrate | C2H4N2O6 |
628-96-6 |
0.6 |
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.