This method is suitable for the determination of formaldehyde by GC/FID. The sample is collected on XAD-2, desorbed with toluene, and analyzed using GC/FID or GC/NPD. The working range is 0.24 to 16 ppm (0.3 to 20 mg/m³) for a 10-L air sample. OSHA Method 52 is similar but uses slightly larger sampling tubes.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 3 weeks @ 25 °C |
| Preservatives: | 25 °C |
| Required Preps: | 10% 2-(hydroxymethyl)piperdine on XAD-2, 120 mg / 60 mg, 10 cm x 6 mm OD x 4 mm ID |
| Collection Method: | Solid sorbent tube, 1-36 L @ 0.01-0.10 L/min |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2541
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Formaldehyde | CH2O |
50-00-0 |
1 |
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.