PMID- 26141273 OWN - NLM STAT- MEDLINE DCOM- 20151013 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1406 DP - 2015 Aug 7 TI - Development and evaluation of electromembrane extraction across a hollow polymer inclusion membrane. PG - 34-9 LID - S0021-9673(15)00867-5 [pii] LID - 10.1016/j.chroma.2015.06.020 [doi] AB - In this work, a new variation of the electromembrane extraction (EME) approach employing a hollow polymer inclusion membrane (HPIM) was developed. In this method, a HPIM was prepared by casting a solution of the desired proportions of cellulose acetate (CTA), tris(2-ethylhexyl)phosphate (TEHP) and di-(2-ethylhexyl)phosphoric acid (D2EHPA) in dichloromethane on glass capillary tubing. Three basic drugs namely amphetamine, methamphetamine, and 3,4-methylenedioxy-N-methylamphetamine (MDMA) were selected as model analytes to evaluate the extraction performance of this new approach. The drugs were extracted from human plasma samples, through a 20mum thickness HPIM, to an aqueous acceptor solution inside the lumen of the hollow membrane. Parameters affecting the extraction efficiency were investigated in detail. Under the optimized conditions, enrichment factors in the range of 97-103-fold were obtained from 3mL of sample solution with a 10min extraction time and an applied voltage of 300V across the HPIM. The detection limits of the method for the three drugs were in the range of 1.0-2.5ng/mL (at a signal/noise ratio of three), with relative standard deviations of between 6.4% and 7.9%. When the method was applied to spiked plasma samples, the relative recoveries ranged from 99.2% to 100.8%. Enrichment factors of 103, 99 and 97 were obtained for amphetamine, methamphetamine, and MDMA, respectively. A comparison was also made between the newly developed approach and EME using supported liquid membranes (SLM) as well as standard sample preparation methods (liquid-liquid extraction) used by the Toxicology Unit, Department of Chemistry, Malaysia. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Mamat, Nor Akma AU - Mamat NA AD - Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia. FAU - See, Hong Heng AU - See HH AD - Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Australian Centre for Research on Separation Science, School of Physical Sciences - Chemistry, University of Tasmania, Private Bag 75, Hobart 7001, Tasmania, Australia. Electronic address: hhsee@ibnusina.utm.my. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150619 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Amphetamines) RN - 0 (Membranes, Artificial) RN - 0 (Organophosphates) RN - 0 (Polymers) RN - 3J2P07GVB6 (acetylcellulose) RN - 44RAL3456C (Methamphetamine) RN - 9004-34-6 (Cellulose) RN - BQC0BKB72S (tris(2-ethylhexyl)phosphate) SB - IM MH - Amphetamines/*analysis/blood MH - Blood Chemical Analysis/*methods MH - Cellulose/analogs & derivatives/chemistry MH - Humans MH - Limit of Detection MH - Malaysia MH - Membranes, Artificial MH - Methamphetamine/analysis/blood MH - Organophosphates/chemistry MH - Polymers/chemistry OTO - NOTNLM OT - Capillary electrophoresis OT - Drugs OT - Electromembrane extraction OT - Plasma OT - Polymer inclusion membrane EDAT- 2015/07/05 06:00 MHDA- 2015/10/16 06:00 CRDT- 2015/07/05 06:00 PHST- 2015/05/02 00:00 [received] PHST- 2015/06/09 00:00 [revised] PHST- 2015/06/09 00:00 [accepted] PHST- 2015/07/05 06:00 [entrez] PHST- 2015/07/05 06:00 [pubmed] PHST- 2015/10/16 06:00 [medline] AID - S0021-9673(15)00867-5 [pii] AID - 10.1016/j.chroma.2015.06.020 [doi] PST - ppublish SO - J Chromatogr A. 2015 Aug 7;1406:34-9. doi: 10.1016/j.chroma.2015.06.020. Epub 2015 Jun 19.