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On-line monitoring of trihalomethanes in drinking water using continuous-flow purge and cryofocusing gas chromatography-mass spectrometry.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Tien Chien Her, Guor Rong |
| Copyright Year | 2001 |
| Abstract | A continuous-flow purge-and-trap-GC-MS system was developed for on-line monitoring of THMs (trihalomethanes) in drinking water. Three systems with different traps and purging flow-rates are discussed. In order to minimize interference from water vapor, total purge gas volume and injection temperature were controlled during analysis. Shorter sample concentration time and GC separation time reduced total cycle time to less than 5 min. The detection limits of the system could be lowered to 10 ppt, 25 ppt, 40 ppt, and 50 ppt (w/w) for CHCl3, CHCl2Br, CHClBr2, and CHBr3, respectively. This system could detect changes in sample concentration when applied to the on-line monitoring of THMs in drinking water. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S0021-9673(01)01072-X |
| PubMed reference number | 11572393 |
| Journal | Medline |
| Volume Number | 927 |
| Issue Number | 1-2 |
| Alternate Webpage(s) | http://ntur.lib.ntu.edu.tw//bitstream/246246/166274/1/35.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/S0021-9673%2801%2901072-X |
| Journal | Journal of chromatography. A |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |