PMID- 30086894 OWN - NLM STAT- MEDLINE DCOM- 20181026 LR - 20181026 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 189 DP - 2018 Nov 1 TI - A novel air-assisted liquid-liquid microextraction based on in-situ phase separation for the HPLC determination of bisphenols migration from disposable lunch boxes to contacting water. PG - 116-121 LID - S0039-9140(18)30677-5 [pii] LID - 10.1016/j.talanta.2018.06.072 [doi] AB - In this study, a novel air-assisted liquid-liquid microextraction (AALLME) method was developed for the HPLC determination of bisphenols migration from disposable plastic lunch box to contacting water. The AALLME was carried out in commercially-available medical plastic syringes with low-density extraction solvent (n-octanol), and the reaction of NaHCO(3) and HCl was introduced to simultaneously induce the in-situ phase separation and salt effect. After the AALLME processes, the upper organic phase was pushed into the end of syringes (narrow tube) by moving the piston so that it could be readily collected for the HPLC analysis. The factors including the type and volume of extraction solvent, NaHCO(3) addition and extraction cycles were optimized. Under the optimal conditions, the limits of detection (LODs) for target bisphenols were evaluated to be 0.2-0.7 mug L(-1), and good linearities with correlation coefficients higher than 0.9955 were obtained. The recoveries for target bisphenols ranged from 80% to 106%, with the relative standard deviations (RSDs) of 4.4-14.1%. The proposed method was successfully applied to investigate the migration of bisphenols from the disposable plastic lunch boxes to the contacting water, revealing that compared to the conventional water-bath heating, the microwave heating could induce the significant migration of bisphenols in a much shorter time. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Zhou, Qinghua AU - Zhou Q AD - Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China. FAU - Jin, Zanhui AU - Jin Z AD - Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China. FAU - Li, Jia AU - Li J AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China. FAU - Wang, Bin AU - Wang B AD - Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China. FAU - Wei, Xiuzhen AU - Wei X AD - Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China. FAU - Chen, Jinyuan AU - Chen J AD - Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China. Electronic address: jyc1128@126.com. LA - eng PT - Journal Article DEP - 20180625 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Phenols) RN - 0 (Plastics) RN - 0 (Solvents) RN - 059QF0KO0R (Water) RN - 8MDF5V39QO (Sodium Bicarbonate) SB - IM MH - *Air MH - Chromatography, High Pressure Liquid/*methods MH - Food Contamination/analysis MH - Limit of Detection MH - Liquid Phase Microextraction/*methods MH - *Lunch MH - Phenols/*analysis/chemistry/*isolation & purification MH - Plastics/chemistry MH - Sodium Bicarbonate/chemistry MH - Solvents/chemistry MH - Water/*chemistry OTO - NOTNLM OT - Air-assisted liquid-liquid microextraction OT - Bisphenols OT - Disposable lunch boxes OT - High performance liquid chromatography OT - Migration EDAT- 2018/08/09 06:00 MHDA- 2018/10/27 06:00 CRDT- 2018/08/09 06:00 PHST- 2018/04/10 00:00 [received] PHST- 2018/05/31 00:00 [revised] PHST- 2018/06/24 00:00 [accepted] PHST- 2018/08/09 06:00 [entrez] PHST- 2018/08/09 06:00 [pubmed] PHST- 2018/10/27 06:00 [medline] AID - S0039-9140(18)30677-5 [pii] AID - 10.1016/j.talanta.2018.06.072 [doi] PST - ppublish SO - Talanta. 2018 Nov 1;189:116-121. doi: 10.1016/j.talanta.2018.06.072. Epub 2018 Jun 25.