This method describes the sample collection and analysis of valeraldehyde. A sample is collected by drawing air through an open face air monitoring cassette containing three glass fiber filters. Each filter is coated with 2,4-dinitrophenylhydrazine and phosphoric acid. The filters are extracted with acetonitrile and analyzed by HPLC using a UV detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Up to 19 days. |
| Preservatives: | Keep the samples in the dark whenever possible as a precaution against photodecomposition. Store at room temperature. |
| Required Preps: | A sample is collected using an open face air monitoring cassette containing 3 glass fiber filters (each coated with DNPH and phosphoric acid). Two filters are stacked and are used as the primary collector. The third filter serves as a backup. |
| Collection Method: | Treated glass fiber filters: 3 L at 0.05 L/min. |
| Analytical Methodology: | HPLC/UV. |
| Documentation: | 
085
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Valeraldehyde (Pentanal) | C5H10O |
110-62-3 |
1.84 |
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.