This is a screening technique to determine the presence of aldehydes and should not be used for quantitation. Further confirmation of aldehyde identification should be performed by gas chromatography/mass spectrometry. Methods for quantitation of some aldehydes listed in this method are available in the NIOSH Manual of Analytical Methods. All aldehydes tested have been detected by this method in bulk field samples. The sample is collected on XAD-2 and analyzed using GC/FID with GC/MS used for further confirmation.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least one week @ 25 °C |
| Preservatives: | 25 °C |
| Required Preps: | 10% 2-(hydroxymethys) piperidine on XAD-2, 120 mg / 60 mg, 10 cm x 6 mm OD x 4mm ID |
| Collection Method: | Solid sorbent tube 5 L @ 0.01-0.05 L/min |
| Analytical Methodology: | GC/FID, GC/MS |
| Documentation: | 
2539
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Acrolein | C3H4O |
107-02-8 |
2 |
µg |
| Valeraldehyde (Pentanal) | C5H10O |
110-62-3 |
2 |
µg |
| Heptylaldehyde (heptanal) | C7H14O |
111-71-7 |
2 |
µg |
| Propionaldehyde (Propanal) | C3H6O |
123-38-6 |
2 |
µg |
| Butyraldehyde (Butanal) | C4H8O |
123-72-8 |
2 |
µg |
| Crotonaldehyde | C4H6O |
123-73-9 |
2 |
µg |
| Formaldehyde | CH2O |
50-00-0 |
2 |
µg |
| Isovaleraldehyde | C5H10O |
590-86-3 |
2 |
µg |
| Hexaldehyde (hexanal) | C6H12O |
66-25-1 |
2 |
µg |
| Acetaldehyde | C2H4O |
75-07-0 |
2 |
µg |
| Isobutyraldehyde | C4H8O |
78-84-2 |
2 |
µg |
| Furfural | C5H4O2 |
98-01-1 |
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.