Molecularly imprinted polymer coated solid-phase microextraction fibers for determination of Sudan I-IV dyes in hot chili powder and poultry feed samples.
作者： Xiaogang Hu , Quanlin Cai , Yanan Fan , Tingting Ye , Yujuan Cao
DOI: 10.1016/J.CHROMA.2011.10.089
关键词: Solid-phase microextraction 、 Sudan I 、 Extraction (chemistry) 、 Chemistry 、 Detection limit 、 Chili powder 、 Coating 、 Chromatography 、 Molecularly imprinted polymer 、 Fiber
摘要: Abstract In this research, a novel strategy was developed to prepare molecularly imprinted polymer (MIP) coated solid-phase microextraction fibers on large scale with Sudan I as template and stainless steel substrate. More than 20 could be obtained in one glass tube, the efficiency coating repeatability were enhanced remarkably contrast yield of only fiber our previous works. The MIP-coated characterized by homogeneous highly cross-linked coating, good chemical thermal stabilities, high extraction capacities, specific selectivities I–IV dyes. Based systemic optimization conditions, simple cost-effective method based coupling SPME high-performance liquid chromatography for fast selective determination trace dyes hot chili powder poultry feed samples. limits detection within 2.5–4.6 ng g −1 , spiked recoveries range 86.3–96.3% sample 84.6–97.4% sample.
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