This method is used for the determination of methyl ethyl ketone. The sample is collected on a carbon tube (Anasorb 747). After collection the sample is desorbed in carbon disulfide and analyzed by GC/FID (flame ionization detector). This method was developed to give improved sample stability compared to conventional charcoal tubes.
The working range is 17 to 560 ppm (50 to 1650 mg/m³) for a 3 L air sample. This method has also been successfully used for the determination of acetone and methyl isobutyl ketone.
NOTE: This method is similar (except for the sampler) to Methods P&CAM 127 and S3, which it replaces.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | The method states samples are stable at least 90 days from sampling to analysis if kept at -5°C. |
| Preservatives: | Store samples at -5°C. |
| Required Preps: | Anasorb 747, 70mg/140mg, SKC 226-81A |
| Collection Method: | The method recommends a flow rate of 0.01 - 0.2 L/min. with a collection volume of 0.25 - 12 L. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2500
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Methyl ethyl ketone (2-Butanone) | C4H8O |
78-93-3 |
4 |
ug |
* 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.