This method is for the determination of total organic carbon (TOC) fromw ater and wastewater by a high-temperature combustion method. The sample is acidfied and purged to remove inorganic carbon. The sample is then injected into a high-temperature TOC analyzer. The samples are combusted at ~ 1350o C in an oxygen rich atmosphere. The carbon is converted to carbon dioxide and measured.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 28 days from sample collection to analysis. |
| Preservatives: | 250mL Glass or plastic bottle with Teflon-lined lid. |
| Required Preps: | Cool sample to 4°C. Add H2SO4 to pH < 2. |
| Collection Method: | Grab sampling |
| Analytical Methodology: | TOC analyzer |
| Documentation: | |
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
* 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.