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Determination of Fluoride Content in Ground Water and Studying on the Affective Factors of the Determination
Author(s): SUN Yi, ZENG Yu-xiang
Pages: 162-
164
Year: 2013
Issue:
2
Journal: Guangxi Sciences
Keyword: 氟; 标准曲线法; 离子强度; pH值;
Abstract: 采用电位法测定天津市北辰区西堤头镇地下水氟含量并研究影响测定的条件.取原始水样10.00 ml,测得地下水中含氟量为4.37 μg/ml.测定结果的线性回归方程为E=-64.711lgc(F-)+355.94,r=0.9997,回收率为97%~101.3%.测定离子含量较低时,离子强度对测定结果影响不大,但是pH值对测定结果影响较大,当控制pH值为5时,测定结果准确.
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