摘要
介绍顺昕1800型全自动滴定仪的使用特点及在水质分析化学需要氧量(COD_(Cr))、高锰酸盐指数(COD_(Mn))、总硬度中的应用。进行化学需氧量(COD_(Cr))准确度测定,其低浓度、高浓度质控样品测定的相对误差分别为0.3%和0.7%,空白样品精密度良好,相对标准偏差(RSD)<1.0%,对实际水样高锰酸盐指数(COD_(Mn))和总硬度比对试验结果进行F检验和t检验,统计学评价表明手工滴定和全自动滴定结果无显著性差异。
This thesis introduced the characteristics of Shunxin 1800 automatic titrator and the application in water quality analysis of chemical oxygen demand(COD_(Cr)),permanganate index(COD_(Mn)),and total hardness.The accuracy of chemical oxygen demand was measured,and the relative errors of low and high concentration quality control samples were 0.3% and 0.7% respectively.The precision of the blank sample was good,and the relative standard deviation(RSD) was less than 1.0%.Thedetermination results of COD_(Mn),and total hardness in actual water samples were evaluated with F-test and t-test.Statistical evaluation showed that there was no significant difference in the results between manual titration and automatic titration.
作者
黄莹
曹寅莹
HUANG Ying;CAO Yinying(Analysis and Testing Section,Jiangsu Zhenjiang Environmental Monitoring Center,Zhenjiang 212004,China)
出处
《镇江高专学报》
2024年第1期76-78,共3页
Journal of Zhenjiang College
关键词
全自动滴定
水质分析
顺昕1800型
automatic titration
water quality analysis
1800 Model Shunxin
