电导率法测定水中溶解性总固体含量的研究

Study on the Determination of Total Dissolved Solids in Water by Conductivity Method

研究电导率法测定工业水中溶解性总固体含量,比较了两种不同的测定方法,试验结果表明:采用标定后的工业水作为标准溶液作工作曲线,测定结果明显优于采用购买的标准溶液作工作曲线的测定结果。与传统的重量法相比,采用标定后的工业水作为标准溶液作工作曲线的电导率法具有重复性好、准确度高、操作简单、测定速度快等优点,直得推广应用。

In this paper,the electrical conductivity method is studied for the determination of total dissolved solids in industrial water.Two different methods are compared.The test results show that using the calibrated industrial water as the working curve is obviously better than using the purchased standard solution as the working curve.Compared with the traditional gravimetric method,the conductivity method which uses the calibrated industrial water as the working curve of the standard solution has the advantages of good repeatability,high accuracy,simple operation and fast determination speed,which can be directly popularized and applied.