This method is for the determination of glutaraldehyde. The sample is collected on silica gel coated with 2,4-DNPH HCl sorbent tubes, desorbed in acetonitrile and shaken for 2 hours, followed by HPLC-UV analysis. The working range is 0.01 to 0.3 ppm (0.04 to 1.2 mg/m³) for a 20 L air sample. NOTE: OSHA method 64 uses a glass fiber coated with 2,4-DNPH and phosphoric acid for collection, with HPLC analysis.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 30 days @ 25 °C |
| Preservatives: | 25 °C |
| Required Preps: | Solid sorbent tube: silica coated with 2,4-dinitrophenyl hydrazine HCl, 300mg/150mg; 110mm x 6mm OD. |
| Collection Method: | Solid sorbent tube, 1L to 30L @ 0.05 to 0.5 L/min |
| Analytical Methodology: | HPLC-UV |
| Documentation: | 
2532
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Glutaraldehyde | C5H8O2 |
111-30-8 |
0.3 |
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.