This method is for the determination of bis-chloromethyl ether (BCME) and chloromethyl methyl ether (CMME). The sample is collected in two "derivatizing reagent" bubblers connected in series. The derivative is extracted with hexane and analyzed by gas chromatography using an electron capture detector.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | The recovery of the analyte from the collection medium after storage must be 75% or greater. Recoveries of greater than 87% were obtained from samples stored for up to 14 days at ambient temperature. |
| Preservatives: | Not noted in method |
| Required Preps: | Two standard air bubblers with fritted glass inlets each containing 10 mL of the derivatizing solution. |
| Collection Method: | Two standard air bubblers: 50 L at 0.5 L/min. |
| Analytical Methodology: | GC/ECD |
| Documentation: | 
010
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Chloromethyl Methyl Ether | C2H5ClO |
107-30-2 |
0.04 |
ng |
| bis-Chloromethyl ether | C2H4Cl2O |
542-88-1 |
0.05 |
ng |
* 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.