Determination of Trace zinc by Fluorescence Spectrophotometry with Bis-sulfosalophen

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Changai, Deng^1 ; Chao, Peng^1 ; Shaohua, Yang^1

College of Chemistry and Chemical Engineering, University of South China, Hengyang

421001, China^1

关键词: Correlation coefficient;    Fluorescence intensities;    Fluorescence spectrophotometry;    Linear relationships;    Regression equation;    Relative standard deviations;    Salicylaldimines;    Spectrofluorimetric methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/3/032080/pdf
DOI  :  10.1088/1755-1315/267/3/032080

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A new schiff's base bis-sulfosalophen has been synthesized by Sodium salicylaldimine-5-sulphonate with 3,3',4,4'-Biphenyltetramine. Zonic ion can coordinate with the compound and enhance its fluorescence intensity. Thereby, a new spectrofluorimetric method for the determination of trace zonic has been developed. When the concentration of zonic is in the range of 1∼7μg/mL, it has a good linear relationship with F, where the regression equation and the correlation coefficient are F=205.7+282.6c Zn(μg/mL) and r=0.9935 respectively. The detection limit for zonic has been found to be 1.72ng/mL. The method has been used to determine trace zonic in river, city and mineral water samples with the relative standard deviation of 0.23∼3.84%(n=5), the recovery of 101.7∼105.0%.