摘要
〔目的〕建立一种测定水中溶解氧的新方法。〔方法〕用盐酸标准溶液滴定金属铊与水中溶解氧反应的产物 ,以电导法指示滴定终点。〔结果〕相对标准偏差为 0 .3 8% -0 .97% ,相对误差为 -1.96% -1.85 %。〔结论〕本法准确度好 ,快捷灵敏 ,抗干扰能力强 ,是一种测定水中溶解氧的简便可靠的方法。
Objective To establish a new method for detection of DO in water. 〔Methods〕 The product of reaction between Tl and DO was titrated with HCl standard solution and the endpoint of titration was indicated by conductometry.〔Results〕 The relative error was -1.55% to 1.85% and relative standard deviation 0.38% to 0.72%.〔Conclusions〕 This method is accurate,simple and sensitive for detection of DO in water.
出处
《中国卫生检验杂志》
CAS
2004年第1期24-25,共2页
Chinese Journal of Health Laboratory Technology
关键词
电导滴定法
溶解氧
水质分析
铊
Conductometric titration
DO
Thallium
Water quality analysis
