This method is for the determination of chloroacetic acid. The sample is collected on silica sorbent tubes, desorbed in 2 mL deionized water, and analyzed by GC/FID. The working range is 0.09 to greater than 85 ppm (0.3 to 30 mg/m³) for a 3 L air sample. Chloroacetyl chloride is a positive interferent since it is hydrolized to monochloroacetic acid by the measurement procedure and is efficiently collected by silica gel. Particulate salts of the acid are positive interferents. Note: This method revises P&CAM 332. The columns used in P&CAM 332 are no longer available and the newer columns used in this method show improvements in the analytical range and sensitivity.
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: | At least 7 days from sampling to analysis if kept at 25°C and 32 days from sampling to analysis if kept refrigerated |
| Preservatives: | Store refrigerated or at 25°C. |
| Required Preps: | Solid sorbent tube: silica gel, 100mg/50mg, 7cm x 6mm OD x 4mm ID |
| Collection Method: | Solid sorbent tube: 1 - 100 L @ 0.05 - 0.2 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2008
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Monochloracetic Acid (MCAA) | C2H3ClO2 |
79-11-8 |
0.04 |
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.