PMID- 14963623 OWN - NLM STAT- MEDLINE DCOM- 20040720 LR - 20160512 IS - 1618-2642 (Print) IS - 1618-2642 (Linking) VI - 379 IP - 1 DP - 2004 May TI - Determination of fifteen priority phenolic compounds in environmental samples from Andalusia (Spain) by liquid chromatography-mass spectrometry. PG - 125-30 AB - This work describes the optimisation of a method to determinate fifteen phenolic compounds in waters, sediments and biota (green marine algae) by liquid chromatography coupled to mass spectrometry (LC-MS) with atmospheric pressure chemical ionisation (APCI) in the negative mode. The LC separations of the studied compounds and their MS parameters were optimised in order to improve selectivity and sensitivity. Separation was carried out with a C(18) column using methanol and 0.005% acid acetic as mobile phase in gradient mode. The molecular ion was selected for the quantitation in selective ion monitoring (SIM) mode. A solid-phase extraction (SPE) method was applied in order to preconcentrate the target analytes from water samples. However, extraction of the compounds from sediment and biota samples was carried out by liquid-solid extraction with methanol/water after studying the influence of other organic solvents. In addition, a clean-up step by SPE with HLB Oasis cartridges was necessary for sediments and biota. The proposed analytical methodology was validated in the target environmental matrices by the analysis of spiked blank matrix samples. Detection limits were 10-50 ng L(-1) for water, 1-5 microg kg(-1) for sediments and 2.5-5 microg kg(-1) for biota samples. Good recoveries and precision values were obtained for all matrices. This methodology has been successfully applied to the analysis of incurred water, sediment and biota samples from Andalusia (Spain). FAU - Martinez Vidal, J L AU - Martinez Vidal JL AD - Department of Analytical Chemistry, University of Almeria, 04120 Almeria, Spain. jlmartin@ual.es FAU - Belmonte Vega, A AU - Belmonte Vega A FAU - Garrido Frenich, A AU - Garrido Frenich A FAU - Egea Gonzalez, F J AU - Egea Gonzalez FJ FAU - Arrebola Liebanas, F J AU - Arrebola Liebanas FJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20040213 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Phenols) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Biodiversity MH - Chlorophyta/chemistry MH - Chromatography, Liquid/methods MH - Environmental Monitoring/*methods MH - Geologic Sediments/analysis MH - Mass Spectrometry/methods MH - Phenols/*analysis/chemistry MH - Reproducibility of Results MH - Spain MH - Water/analysis MH - Water Pollutants, Chemical/*analysis EDAT- 2004/02/14 05:00 MHDA- 2004/07/21 05:00 CRDT- 2004/02/14 05:00 PHST- 2003/10/22 00:00 [received] PHST- 2003/12/05 00:00 [revised] PHST- 2003/12/10 00:00 [accepted] PHST- 2004/02/14 05:00 [pubmed] PHST- 2004/07/21 05:00 [medline] PHST- 2004/02/14 05:00 [entrez] AID - 10.1007/s00216-003-2459-z [doi] PST - ppublish SO - Anal Bioanal Chem. 2004 May;379(1):125-30. doi: 10.1007/s00216-003-2459-z. Epub 2004 Feb 13.