科技创新与应用2025，Vol.15Issue(1)：52-55,4.DOI:10.19981/j.CN23-1581/G3.2025.01.012
工程勘察中比浊法测定硫酸盐的实验研究
刘明丽 1陈莹 1王丹 1战博 1辛敬文1
作者信息
- 1. 华北有色工程勘察院有限公司,石家庄 050021||自然资源部金属矿山地下水灾害防治工程技术创新中心,石家庄 050021
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摘要
Abstract
In the DZ/T 0064.65-2021"Analysis Method for Groundwater Quality",the turbidimetric method for the determination of sulfates is sensitive to experimental conditions,the linearity of the standard curve is poor,and the data accuracy cannot meet the requirements.By changing the morphology of barium chloride(crystals turn into solution),lengthening the standing time after stirring,and increasing the amount of mixed stabilizer,the changes in absorbance and standard curve correlation coefficients were analyzed to find out the experimental conditions that meet the accuracy of the test data.,allowing this method to be better applied in practice.The experimental results show that changing the above experimental conditions has a great impact on absorbance;changing the form of barium chloride,increasing the added amount of mixed stabilizer and lengthening the standing time after stirring can all improve the linear correlation of the standard curve,and the correlation coefficient R2 can reach 0.999,thereby improving the accuracy of detection data,providing more accurate data support for engineering investigation,and providing a stronger guarantee for project quality and safety.关键词
比浊法/硫酸盐/氯化钡溶液/静置时间/混合稳定剂Key words
turbidimetry/sulfate/barium chloride solution/standing time/mixed stabilizer分类
建筑与水利引用本文复制引用
刘明丽,陈莹,王丹,战博,辛敬文..工程勘察中比浊法测定硫酸盐的实验研究[J].科技创新与应用,2025,15(1):52-55,4.
