This method describes the sample collection and analysis of ortho-, meta-, and para-phenylenediamine. Samples are collected closed-face by drawing known volumes of air through sampling devices consisting of three-piece cassettes, each containing two sulfuric acid-treated glass fiber filters separated by the ring section. The sample filters are extracted with an aqueous EDTA solution and the extracts are analyzed for the free amines by HPLC using a UV detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Up to 15 days. |
| Preservatives: | Store at room temperature. |
| Required Preps: | Two sulfuric-acid treated 37-mm Gelman type A/E glass fiber filters contained in a three-piece polystyrene cassette. |
| Collection Method: | Treated glass fiber filters: 100L @ 1L/min. |
| Analytical Methodology: | HPLC/UV |
| Documentation: | 
087
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| 1,4-Benzenediamine | C6H8N2 |
106-50-3 |
44 |
ng |
| 1,3-Benzenediamine | C6H8N2 |
108-45-2 |
56 |
ng |
| o-Phenylenediamine | C6H8N2 |
95-54-5 |
211 |
ng |
* 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.