| Title: | Determination of volatile organics in drinking water with USEPA method 524.2 and the ion trap detector |
| Author(s): | Eichelberger JW; Bellar TA; Donnelly JP; Budde WL; |
| Address: | "U.S. Environmental Protection Agency, Office of Research and Development, Cincinnati, Ohio 45268" |
| DOI: | 10.1093/chromsci/28.9.460 |
| ISSN/ISBN: | 0021-9665 (Print) 0021-9665 (Linking) |
| Abstract: | "New drinking water regulations require the monitoring of eight volatile organic compounds that have established maximum contaminant levels (MCLs) and 51 other volatile organics for which MCLs are not established. A laboratory analytical method (Method 524.2) for the determination of 58 of these compounds is investigated, and precision and accuracy data are obtained. The method uses a standard inert gas purge extraction, isolation of the volatile organics on a three-stage solid-phase trap, thermal desorption into a gas chromatograph, separation with a fused-silica capillary column, and identification and measurement with a relatively low cost, benchtop ion trap detector that functions as a mass spectrometer. At a concentration of 2 micrograms/L (2 parts per billion), the grand mean measurement accuracy for 54 compounds was 95% of the true value with a mean relative standard deviation (RSD) of 4%. At 0.2 micrograms/L (200 parts per trillion), the grand mean measurement accuracy for 52 compounds was 95% of the true value with a mean RSD of 3%" |
| Keywords: | "Gas Chromatography-Mass Spectrometry Water Pollutants, Chemical/*analysis Water Supply/*analysis;" |
| Notes: | "MedlineEichelberger, J W Bellar, T A Donnelly, J P Budde, W L eng 1990/09/01 J Chromatogr Sci. 1990 Sep; 28(9):460-7. doi: 10.1093/chromsci/28.9.460" |
