Determination and Analysis of Fluorine Ion in Surface Water by Ion Chromatography

2018 International Conference on Air Pollution and Environmental Engineering

生态环境科学

Tian, Yuping^1 ; Shi, Wenwen^1

Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Environmental Science and Engineering, China West Normal University, Nanchong, China^1

关键词: Average concentration;    Dilution effect;    Fluorine ions;    National standard;    River flow;    Time distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/208/1/012058/pdf
DOI  :  10.1088/1755-1315/208/1/012058

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Determination of fluorine ion in surface water by ion chromatography is simple and rapid. It can well reflect the change of fluorine ion concentration in a certain period of time. In this experiment, the seven rivers of Jingbian, Qingping, White Tower, Sailong, Quanmin Reservoir Dam, Hulu Island and Lingyun Bridge in Guang'an City were monitored for four months. The results showed that from the perspective of watershed and river flow, due to the enrichment of fluorine ions in the downstream reaches, the fluorine ion concentration of the Lingyun Bridge is higher than that of other rivers, but they are all within the limits of 1mg/L which meets national standards of surface water (GB 3838-2002). From the time distribution, the maximum of F- average concentration of the seven rivers appeared in December, which may be due to the concentration of rainfall in October and November in Guang'an. To a certain extent, it has a certain dilution effect on fluorine ion concentration.