title: An optical material for the detection of trace S2O32-in milk based on a copper complex.
abstract: A novel S2O32-luminescent sensor (Cu2+-p-CPIP) was developed and the presence of S2O32-caused an obvious fluorescence enhancement at 420 nm upon excitation at 330 nm, which could be distinguished with the naked eye under a UV lamp. Remarkably, the compound exhibited excellent selective and sensitive response to S2O32-over other common anions with a micromolar limit of detection (0.442 μM) in DMSO/H2O (v/v, 1:1) buffer. The absorbance intensity and the color of Cu2+-p -CPIP solution changed gradually with the increase of S2O32-concentration. The proposed method was applied to the determination of S2O32-in milk samples and the recoveries were 97.5-105%. The preparation of Cu2+-p -CPIP exhibited the quick, simple and facile advantages. The results showed that Cu2+-p -CPIP can be a good candidate for simple, rapid and sensitive colorimetric detection of S2O32-in aqueous solution.
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China. wangqm@yctu.edu.cn.|State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, People's Republic of China. wangqm@yctu.edu.cn.
authors.forename: Qingming
authors.initials: Q
authors.lastname: Wang
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China.
authors.forename: Huifang
authors.initials: H
authors.lastname: Sun
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China.
authors.forename: Weilin
authors.initials: W
authors.lastname: Sha
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China.
authors.forename: Juan
authors.initials: J
authors.lastname: Chen
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China.
authors.forename: Liuyue
authors.initials: L
authors.lastname: Gu
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China.
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.affiliation: School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, 224051, Jiangsu, People's Republic of China. xinhuitang@sina.com.
authors.forename: Xinhui
authors.initials: X
authors.lastname: Tang
mesh_terms: D000818:Animals; D003300:Copper / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry; D008892:Milk / Q000737:chemistry*; D015394:Molecular Structure; D055620:Optical Phenomena; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013885:Thiosulfates / Q000032:analysis*
chemical_list: D005456:Fluorescent Dyes; D009942:Organometallic Compounds; D013885:Thiosulfates; D003300:Copper
keywords: 1,10-Phenanthroline-5,6-dione; Chemodosimeter; Copper complex; S2O3 2−