一种应用比率荧光法定量分析水体中亚甲基蓝含量的方法  

A Ratio-Fluorescence Method for Quantitative Analysis of Methylene Blue

作　　者：李兰 张棵实 白文凤 刘乃青[3] 金丽[1] 张建坡[1] LI Lan;ZHANG Keshi;BAI Wenfeng;LIU Naiqing;JIN Li;ZHANG Jianpo(School of Chemical and Pharmaceutical Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China;Jilin Jihua Northern Longshan Auxiliary Co.,Ltd,Jilin City 132022,China;Research Institute of Jilin Petrochemical Company,Jilin City 132022,China)

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132022 [2]吉化北方龙山助剂有限公司,吉林吉林132022 [3]吉林石化公司研究院,吉林吉林132022

出　　处：《吉林化工学院学报》2022年第9期7-10,共4页Journal of Jilin Institute of Chemical Technology

摘　　要：亚甲基蓝作为一种染料,被广泛用于工业、医药、水产养殖和皮肤护理等领域.但是过量使用亚甲基蓝,不仅污染环境,还会危害人类和动物的健康.通过将石墨烯量子点与CdTe量子点混合得到比率荧光检测体系,依据荧光强度变化和亚甲基蓝浓度之间的线性关系,建立了一种定量分析亚甲基蓝含量的方法,线性范围为3.13~9.38 nmol·L^(-1),最低检出限为0.5589 nmol·L^(-1).该方法具有较高的灵敏性、选择性与稳定性,可用于检测水溶液中亚甲基蓝含量.Methylene blue,as a dye,has been widely used in industry,medicine,aquaculture,skin care,and et al.But excessive use of methylene blue,not only pollutes the environment,but also endangers the health of human beings and animals.In this paper,ratio-fluorescence detection system has been founded through mixing of graphene and CdTe quantum dots,and a method for quantitative analysis of MB was founded based on linear relationship between variety of fluorescence intensity and concentrations of methylene blue,of which linear range is 3.13~9.38 nmol·L^(-1)and the lowest detection limit was 0.5589 nmol·L^(-1).This method have good sensitivity,selectivity and stability,could be used for more accurate detection of methylene blue.

关 键 词：比率荧光 亚甲基蓝 定量分析 石墨烯量子点 CDTE量子点 

分 类 号：O655.2[理学—分析化学]