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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 2
BKCSDE 35(2)
February 20, 2014

Title	Application of Three-phase Hollow Fiber LPME using an Ionic Liquid as Supported Phase for Preconcentration of Malachite Green from Water Samples with HPLC Detection
Author	Yanmin Zou, Zhen Zhang, Xiaoling Shao, Yao Chen, Xiangyang Wu, Liuqing Yang, Jingjing Zhu, Dongmei Zhang
Keywords	Malachite green, Three-phase hollow fiber liquid phase microextraction, Ionic liquid, Environmental water, HPLC/UV
Abstract	A novel three-phase hollow fiber liquid phase microextraction was developed for the determination of malachite green (MG) in environmental waters, which selected [BMIM][PF6] mixed with 1% trioctylphosphine oxide (TOPO) as supported phase. Several parameters (accepter phase pH, sample pH, supported phase membrane, volume of accepter phase, salinity, extraction time) that could affect extraction performance were investigated. Under the optimal extraction conditions, the established approach showed excellent characters as: high enrichment factor (212), wide linear range (0.20-100 μg L1), low detection limit (0.01 μg L1), good reproducibility (RSD, 8.9%, n=5) and satisfactory recovery (84.0-106.2%). The method was applied to detect MG at Yangtze River and pond waters in Zhenjiang, Jiangsu province, and 4 sites among 15 sampling sites were found MG with the concentration of 1.73-11.06 μg L1, which confirmed that the proposed environmentally friendly method was simple and effective for monitoring MG in aquatic system.
Page	371 - 376
Full Text	PDF / Supporting Information

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