论文部分内容阅读
前已报导了显象管废水中氟离子存在下镉的测定,即在离子强度调节液中加入适量的硼酸,以消除氟离子对镉的测定工作的干扰。本文报告了镉电极在国外引进的显象管生产流水线含镉废水测定中的应用。试样需加适量明矾预处理,从而消除硅酸盐之类的絮状物质对电极测试的干扰。然后再进行一次添加测定,检测下限可达0.01ppm.精度符合环境监测要求。
It has previously been reported that the determination of cadmium in the presence of fluoride ions in the waste water of the kinescope means that an appropriate amount of boric acid is added to the ionic strength adjusting solution to eliminate the interference of fluoride ions in the determination of cadmium. This paper reports the application of cadmium electrodes in the determination of cadmium-containing wastewater from the CRT production line introduced abroad. The sample should be treated with the appropriate amount of alum to eliminate the interference of the floccules like silicate on the electrode test. And then add a determination, the detection limit of up to 0.01ppm. Accuracy in line with environmental monitoring requirements.