黑磷量子点催化增强luminol-H_(2)O_(2)发光体系测定对苯二酚  

Black phosphorus quantum dots catalytic enhanced luminol-H_(2)O_(2) chemiluminescence and the determination of hydroquinone

作　　者：陈文静 吴云英 林洪 朱小红 李溪 何茂婷 谢建新 CHEN Wenjing;WU Yunying;LIN Hong;ZHU Xiaohong;LI Xi;HE Maoting;XIE Jianxin(School of Chemistry Biology and Environment,Yuxi Normal University,Yuxi,Yunnan 650031,China)

机构地区：[1]玉溪师范学院化学生物与环境学院,云南玉溪650031

出　　处：《贵州师范大学学报（自然科学版）》2022年第3期46-50,共5页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家自然科学基金项目(21465024);云南省教育厅科学研究基金项目(2019J0737);云南省级大学生创新创业训练计划项目(202111390039;2021A010)。

摘　　要：在碱性条件下,黑磷量子点能催化增强luminol-H_(2)O_(2)体系的化学发光,对苯二酚能很好地抑制该体系的化学发光强度。考察了pH、luminol浓度、H_(2)O_(2)浓度、黑磷量子点浓度对化学发光体系的影响,并对黑磷量子点的催化机理和化学发光体进行了探讨。在最佳条件下,在1.0×10^(-8)~5.0×10^(-7) mol/L范围内,对苯二酚的浓度与化学发光强度降低值呈现良好线性,线性回归方程为△I=6372.3 C(μmol/L)+1329.7,相关系数R^(2)=0.9942,检出限为6.0×10^(-9) mol/L。In alkaline environment,black phosphorus quantum dots could catalyze the chemiluminescence of luminol-H_(2)O_(2) system,and hydroquinone could efficiently inhibit the intensity of chemluminescence system.The effects of pH,luminol concentration,H_(2)O_(2) concentration and black phosphorus quantum dot concentration on the chemiluminescence intensity were investigated,and the catalytic mechanism and chemiluminescence species of black phosphorus quantum dots were discussed.Under the optimized conditions,the concentration of hydroquinone in the range of 1.0×10^(-8) to 5.0×10^(-7) mol/L is linearly correlated with the chemluminescence intensity reduction,the linear regression equation is△I=6372.3 C(μmol/L)+1329.7,and the correlation coefficient R^(2)=0.9942 with the detection limit being 6.0×10^(-9) mol/L.

关 键 词：黑磷量子点 鲁米诺 过氧化氢 化学发光 对苯二酚 

分 类 号：O657.39[理学—分析化学]