摘要
土壤SO_42-速测是利用待测液加BaCl_2形成BaSO_4混浊体进行比浊。本实验采用2种方法进行测试:双试管比浊法和制备比浊表利用比浊环比浊法。结果显示:可达到简易速测的效果;在浓度稀的情况下,可推广添加标准液法(以浓测稀),使之成为可测。
Summary of soil SO42- speed test, the use of test solution plus BaCl2 body for the formation of BaSO4 turbidity turbidity. In this paper, two methods, namely, double-tube turbidimetry, using the table prepared by turbidimetry turbidimetry turbidimetry ring, a simple speed test results. In the case of dilute concentrations, can be extended to add the standard solution method （for measuring dilute concentrations）, making it measurable.
