This method is for the determination of 29 purgeable halocarbons. This is a purge and trap (GC) gas chromatographic method applicable to the determination of the compounds in municipal and industrial discharges. An inert gas is bubbled through a 5 mL water sample contained in a specially-designed purging chamber at ambient temperature. The halocarbons are efficiently transferred from the aqueous phase to the vapor phasewhich is swept through a sorbent trap where the halocarbons are trapped. After purging is completed, the trap is heated and back flushed with inert gas to desorb the halocarbons onto a GC column. The GC is temperature programmed to separate the halocarbons which are then detected with a halide-specific detector.
Collect the sample with no headspace.
No Obligation Quotation for Analytical Services
If you would like us to provide a quote for laboratory analysis, just provide us with as much information as you can about your project (the more, the better) and we'll provide you a quote via email. As you are searching or browsing our Analytical Guide, you'll see the Request-A-Quote icon... just click on it to start the request process.
| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 14 days from sample collection to analysis. |
| Preservatives: | Samples must be iced or refrigerated from sample collection to analysis. If free or residual chlorine is present add sodium thiosulfate preservative (10mg/40mL for up to 5ppm of chlorine). |
| Required Preps: | Two 40mL VOA vials |
| Collection Method: | Grab sampling |
| Analytical Methodology: | GC-Halide Specific Detector |
| Documentation: | 
601
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| cis-1,3-Dichloropropene | C3H4Cl2 |
10061-01-5 |
0.34 |
µg/L |
| trans-1,3-Dichloropropene | C3H4Cl2 |
10061-02-6 |
0.2 |
µg/L |
| 1,4-Dichlorobenzene | C6H4Cl2 |
106-46-7 |
0.24 |
µg/L |
| 1,2-Dichloroethane | C2H4Cl2 |
107-06-2 |
0.03 |
µg/L |
| Chlorobenzene | C6H5Cl |
108-90-7 |
0.25 |
µg/L |
| Ethyl Vinyl Ether | C4H7ClO |
110-75-8 |
0.13 |
µg/L |
| Chlorodibromomethane | CHBr2Cl |
124-48-1 |
0.09 |
µg/L |
| Tetrachloroethene | C2Cl4 |
127-18-4 |
0.03 |
µg/L |
| trans-1,2-Dichloroethene | C2H2Cl2 |
156-60-5 |
0.1 |
µg/L |
| 1,3-Dichlorobenzene | C6H4Cl2 |
541-73-1 |
0.32 |
µg/L |
| Carbon tetrachloride | CCl4 |
56-23-5 |
0.12 |
µg/L |
| Chloroform | CHCl3 |
67-66-3 |
0.05 |
µg/L |
| 1,1,1-Trichloroethane | C2H3Cl3 |
71-55-6 |
0.03 |
µg/L |
| Bromomethane | CH3Br |
74-83-9 |
1.18 |
µg/L |
| Chloromethane (Methyl chloride) | CH3Cl |
74-87-3 |
0.08 |
µg/L |
| Chloroethane | C2H5Cl |
75-00-3 |
0.52 |
µg/L |
| Vinyl chloride | C2H3Cl |
75-01-4 |
0.18 |
µg/L |
| Methylene chloride | CH2Cl2 |
75-09-2 |
0.25 |
µg/L |
| Bromoform | CHBr3 |
75-25-2 |
0.2 |
µg/L |
| Bromodichloromethane | CHBrCl2 |
75-27-4 |
0.1 |
µg/L |
| 1,1-Dichloroethane | C2H4Cl2 |
75-34-3 |
0.07 |
µg/L |
| 1,1-Dichloroethene | C2H2Cl2 |
75-35-4 |
0.13 |
µg/L |
| Trichlorofluoromethane | CCl3F |
75-69-4 |
||
| Dichlorodifluoromethane | CCl2F2 |
75-71-8 |
1.81 |
µg/L |
| 1,2-Dichloropropane | C3H6Cl2 |
78-87-5 |
0.04 |
µg/L |
| 1,1,2-Trichloroethane | C2H3Cl3 |
79-00-5 |
0.02 |
µg/L |
| Trichloroethene | C2HCl3 |
79-01-6 |
0.12 |
µg/L |
| 1,1,2,2-Tetrachloroethane | C2H2Cl4 |
79-34-5 |
0.03 |
µg/L |
| 1,2-Dichlorobenzene | C6H4Cl2 |
95-50-1 |
0.15 |
µg/L |
* 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.