文献类型：期刊文献

英文题名：A metal-free and preconcentration-free method for non-enzymatic amperometric determination of pentachlorophenol using a ZIF-derived hollow carbon material

作者：Zhu, Xiang[1];Zhao, Hongli[2];Shen, Jianmin[1];Chen, Huilan[2];Cai, Xuan[2];Xu, Jijun[1];Wang, Xuan[1];Wang, Lei[1];Lan, Minbo[2]

机构：[1]Shanghai Tobacco Grp Co Ltd, Shanghai Tobacco Packaging Printing Co Ltd, Shanghai 200137, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

年份：2020

卷号：187

期号：4

外文期刊名：MICROCHIMICA ACTA

收录：;EI(收录号：20242616374055);WOS:【SCI-EXPANDED(收录号:WOS:000519948600001)】；

基金：This work was supported by Natural Science Foundation of Shanghai (No. 19ZR1412000) and the Fundamental Research Funds for the Central Universities (No. 50321101917022).

语种：英文

外文关键词：Pentachlorophenol; Electrochemical sensor; Non-enzymatic sensing; Non-metal determination; Preconcentration-free assay; Hollow structure; Carbon material; Food packaging

摘要：An enzyme-free, metal-free, and preconcentration-free electrochemical sensor for pentachlorophenol assay has been fabricated. The interface of the sensor is based on a hollow zeolitic imidazolate framework-derived mesoporous carbon material (denoted as HZC/SPCE). The sensor exhibits linear amperometric response upon pentachlorophenol at 0.82 V (vs. Ag/AgCl) in the concentration range 0.001 to 26.8 mg L-1 (3.75 x 10(-8)similar to 1.006 x 10(-4) M) (R-2 = 0.997). The sensitivity of HZC/SPCE is 3.53 x 10(2) mu A mM(-1) cm(-2) with a detection limit of 2.05 x 10(-9) M (S/N = 3) for pentachlorophenol. The method has been applied to the determination of pentachlorophenol in spiked food packaging samples with recoveries in the range 92.0 to 107.0%.