This method is for the sample collection and analysis of ethylenediamine (EDA), diethylenetriamine (DETA), and triethylenetriamine (TETA). The sample is collected on an XAD-2 tube coated with 10% 1-naphthylisothiocyanate (NITC) by weight. After collection, the sample is derivitized with dimethylformamide and analyzed by high-performance liquid chromatography with ultraviolet detection (HPLC/UV).
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Recovery remained at 92, 87, 89% for EDA, DETA, and TETA, respectively, after 15 days of storage at ambient temperature (20-26°C) or refrigeration at 2°C. |
| Preservatives: | Store samples refrigerated or at ambient temperatures. |
| Required Preps: | 10% NITC by weight XAD-2 tube, 80mg/40mg (SKC 226-30-18) |
| Collection Method: | The method recommends a flow rate of 0.1L/min. and a 10L sample collection volume. |
| Analytical Methodology: | HPLC/UV |
| Documentation: | 
60
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Ethylenediamine | C2H8N2 |
107-15-3 |
3.7 |
µg |
| Diethylenetriamine | C4H13N3 |
111-40-0 |
0.16 |
µg |
| Triethylenetetramine | C6H18N4 |
112-24-3 |
0.26 |
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.