PMID- 24850700 OWN - NLM STAT- MEDLINE DCOM- 20150928 LR - 20150129 IS - 1945-239X (Electronic) IS - 0021-9665 (Linking) VI - 53 IP - 2 DP - 2015 Feb TI - Simultaneous determination of seven synthetic colorants in wine by dispersive micro-solid-phase extraction coupled with reversed-phase high-performance liquid chromatography. PG - 210-8 LID - 10.1093/chromsci/bmu042 [doi] AB - A novel and effective dispersive micro-solid-phase extraction (d-micro-SPE) using ethanediamine-functionalized magnetic Fe3O4 polymer (EDA-MP) as an efficient adsorbent in wine sample was developed. Based on this, a simple and time-saving analytical method for the simultaneous determination of seven synthetic colorants (i.e., tartrazine, amaranth, carmine, sunset yellow, allura red, brilliant blue and erythrosine) in wine by reversed-phase high-performance liquid chromatography with an ultraviolet detector was established. The experimental parameters, including the chromatographic retention behavior of studied synthetic colorants, the effect of the usage amount of cross-linking monomer, the effect of the usage amount of EDA-MP on the recovery and the recyclability of the adsorbents, were studied in detail. The results showed that the EDA-MP could be reused efficiently at least six times. Under optimized conditions, the recoveries for all analytes were in the range of 88.6-105.2%, with the intraday relative standard deviations (RSDs) ranging from 2.1 to 8.2% and the interday RSDs ranging from 3.4 to 8.7%, and all the analytes had good linearities in the tested ranges with correlation coefficients (r(2)) >0.9995. The limits of quantification for seven synthetic colorants were between 0.12 and 0.45 mg L(-1). The developed method was successfully applied to wine samples, and it was confirmed that the EDA-MP particles were highly effective d-micro-SPE materials. CI - (c) The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Zhang, Yun AU - Zhang Y AD - Quzhou Center for Disease Control and Prevention, Quzhou 324000, PR China. FAU - Zhou, Hua AU - Zhou H AD - Quzhou Center for Disease Control and Prevention, Quzhou 324000, PR China. FAU - Wang, Yougang AU - Wang Y AD - Quzhou Center for Disease Control and Prevention, Quzhou 324000, PR China. FAU - Wu, Xianglun AU - Wu X AD - Quzhou Center for Disease Control and Prevention, Quzhou 324000, PR China. FAU - Zhao, Yonggang AU - Zhao Y AD - Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, PR China zhyg91213@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140521 PL - United States TA - J Chromatogr Sci JT - Journal of chromatographic science JID - 0173225 RN - 0 (Ethylenediamines) RN - 0 (Food Coloring Agents) RN - 60V9STC53F (ethylenediamine) RN - XM0M87F357 (Ferrosoferric Oxide) SB - IM MH - Adsorption MH - Chromatography, Reverse-Phase/*methods MH - Ethylenediamines/chemistry MH - Ferrosoferric Oxide/chemistry MH - Food Coloring Agents/*analysis MH - Limit of Detection MH - Linear Models MH - Reproducibility of Results MH - Solid Phase Microextraction/*methods MH - Wine/*analysis EDAT- 2014/05/23 06:00 MHDA- 2015/09/29 06:00 CRDT- 2014/05/23 06:00 PHST- 2014/05/23 06:00 [entrez] PHST- 2014/05/23 06:00 [pubmed] PHST- 2015/09/29 06:00 [medline] AID - bmu042 [pii] AID - 10.1093/chromsci/bmu042 [doi] PST - ppublish SO - J Chromatogr Sci. 2015 Feb;53(2):210-8. doi: 10.1093/chromsci/bmu042. Epub 2014 May 21.