This method is for the collection and analysis of alcohols by GC/FID. The alcohols evaluated in the method are: allyl alcohol, diacetone alcohol, cyclohexanol, isoamyl alcohol, and methyl isobutyl alcohol. The sample is collected on a charcoal tube. After collection the sample is desorbed with 5% 2-propanol in carbon disulfide and analyzed by GC/FID (flame ionization detector).
The working range of the method is 1 to 10 mg/m³ for allyl alcohol (other analytes range from 45 to 140 mg/m³ at the low end and 175 to 680 mg/m³ at the high end of working ranges) for a 10 L air sample. High humidity atmospheres greatly reduce the sampling capacity.
NOTE: This method combines and replaces Methods S52, S55, S54, S58, and S60.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in the method. |
| Preservatives: | Store samples in a freezer. |
| Required Preps: | Charcoal tube, 100 mg/50 mg, (SKC 226-01) |
| Collection Method: | The method recommends a flow rate of 0.01 - 0.2 L/min. and a collection volume of 1 - 10 L. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
1402
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Allyl alcohol | C3H6O |
107-18-6 |
0.01 |
mg |
| Methyl isobutyl carbinol | C6H14O |
108-11-2 |
0.01 |
mg |
| Cyclohexanol | C6H12O |
108-93-0 |
0.01 |
mg |
| Diacetone alcohol | C6H12O2 |
123-42-2 |
0.01 |
mg |
| Isoamyl alcohol | C5H12O |
123-51-3 |
0.01 |
mg |
* 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.