This method is used for the determination of acetaldehyde. The sample is collected on a 2-(hydroxymethyl)piperidine (2-HMP) coated XAD-2 sorbent tube, desorbed in toluene, and analyzed by GC/FID (flame ionization detector).
The working range of the method is 0.74 to 407 ppm (1.3 to 730 mg/m³) for a 3 L air sample.
NOTE: This method is an adaptation of OSHA Method 68 and is a convenient alternative to NIOSH Method 3507.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 100% recovery of acetaldehyde after storage for 21 days at 0°C. |
| Preservatives: | Store samples at 0°C. |
| Required Preps: | 2-(hydroxymethyl)piperidine coated XAD-2, 450mg/225mg (SKC 226-27) |
| Collection Method: | Solid sorbent tube (XAD-2, 450 mg/225 mg); 1 - 12 L @ 0.01 - 0.05 L/min |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2538
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Acetaldehyde | C2H4O |
75-07-0 |
2 |
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.