This method describes the sample collection and analysis of maleic anhydride. Samples are collected by drawing air through glass fiber filters coated with 2 mg of 3,4-dimethoxybenzylamine (veratrylamine). Samples are extracted with 90:10 (v/v) acetonitrile/dimethylsulfoxide and analyzed by HPLC using a UV detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Submit the samples for analysis as soon as possible after sampling. |
| Preservatives: | Store samples in a refrigerator upon receipt at the laboratory. If delay is unavoidable, store the samples in a refrigerator. |
| Required Preps: | Two glass fiber filters, each coated with 2 mg of veratrylamine contained in a three-piece polystyrene cassette. |
| Collection Method: | Treated glass fiber filters: 60 L at 0.5 L/min. |
| Analytical Methodology: | HPLC/UV |
| Documentation: | 
086
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Maleic Anhydride | C4H2O3 |
108-31-6 |
1.99 |
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.