This method describes the sample collection and analysis of 4-aminobiphenyl, alpha-naphthylamine, and beta-naphthylamine. 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 transferred to separate glass vials containing 2 mL of deionized water within 10 h after sampling. Quantitation is performed by analyzing the heptafluorobutyric acid anhydride derivatives of the amines by gas chromatography using an electron capture 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: | Samples are collected closed-face using a sampling device consisting of 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: 100 L at 1 L/min. |
| Analytical Methodology: | GC/ECD |
| Documentation: | 
093
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| 1-Naphthalenamine | C10H9N |
134-32-7 |
0.583 |
ng |
| 2-Naphthalenamine | C10H9N |
91-59-8 |
0.598 |
ng |
| 4-Aminobiphenyl | C12H11N |
92-67-1 |
0.677 |
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.