PMID- 17139487 OWN - NLM STAT- MEDLINE DCOM- 20070319 LR - 20160512 IS - 1618-2642 (Print) IS - 1618-2642 (Linking) VI - 387 IP - 2 DP - 2007 Jan TI - Sensitive measurement of ultratrace phenols in natural water by purge-and-trap with in situ acetylation coupled with gas chromatography-mass spectrometry. PG - 687-94 AB - A novel purge-and-trap method coupled with gas chromatography-mass spectrometry (GC-MS) is developed for the analysis of trace and ultratrace phenols based on their derivatization with acetic anhydride. Parameters affecting the extraction efficiency, such as purge temperature, concentration of sodium chloride, purge time, and volume of derivatization reagent, were investigated. The optimized conditions were addition of 150 microL acetic anhydride, purge time of 25 min at the purge temperature of 60 degrees C with 30% NaCl. The linear range was 0.2-100 microg L(-1) for phenols. The limits of detection (LODs) ranged from 0.08 to 0.15 microg L(-1) and the relative standard deviations (RSDs) for most of the phenols at the 10 microg L(-1) level were below 10%. Natural water samples collected from a pool were successfully analyzed using the proposed method. The recovery of spiked water samples was 72.9-84.2%. FAU - Zhao, Ru-Song AU - Zhao RS AD - Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, People's Republic of China. zrswangx@yahoo.com.cn FAU - Cheng, Chuan-Ge AU - Cheng CG FAU - Yuan, Jin-Peng AU - Yuan JP FAU - Jiang, Ting AU - Jiang T FAU - Wang, Xia AU - Wang X FAU - Lin, Jin-Ming AU - Lin JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20061201 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Phenols) RN - 0 (Water Pollutants) SB - IM MH - Acetylation MH - Gas Chromatography-Mass Spectrometry/*methods/standards MH - Methods MH - Phenols/*analysis MH - Reference Standards MH - Sensitivity and Specificity MH - Water Pollutants/*analysis EDAT- 2006/12/02 09:00 MHDA- 2007/03/21 09:00 CRDT- 2006/12/02 09:00 PHST- 2006/05/11 00:00 [received] PHST- 2006/10/02 00:00 [accepted] PHST- 2006/09/24 00:00 [revised] PHST- 2006/12/02 09:00 [pubmed] PHST- 2007/03/21 09:00 [medline] PHST- 2006/12/02 09:00 [entrez] AID - 10.1007/s00216-006-0890-7 [doi] PST - ppublish SO - Anal Bioanal Chem. 2007 Jan;387(2):687-94. doi: 10.1007/s00216-006-0890-7. Epub 2006 Dec 1.