This method describes the sample collection and analysis of ethylamine. Samples are collected by drawing known volumes of air through standard size sampling tubes containing XAD-7 resin coated with 10% NBD chloride by weight. The samples are desorbed with 5% (w/v) NBD chloride in tetrahydrofuran (with a small amount of sodium bicarbonate present), heated in a hot water bath, and analyzed by high-performance liquid chromatography using a fluorescence or visible detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Recovery remained above 80% after 15 days of storage @ 0°C and 24°C. |
| Preservatives: | Keep refrigerated or at ambient temperature. |
| Required Preps: | Solid sorbent sampling tubes (two sections) containing XAD-7 coated with 10% NBD chloride by weight, 80mg/40mg; 7cm x 6mm OD x 4mm ID. |
| Collection Method: | Solid sorbent XAD-7 tubes: 10L @ 0.2L/min. |
| Analytical Methodology: | HPLC-Fluorescence or visible detection. |
| Documentation: | 
036
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Ethylamine | C2H7N |
75-04-7 |
0.29 |
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.