摘要
建立离子色谱法测定水样中氯化物的方法,Cl-浓度在0.40～4.00mg/L范围内与色谱峰面积呈线性关系,线性方程为A=0.0680c+0.0011,线性相关系数r=0.9995。样品6次测定结果的相对标准偏差为1.01,加标回收率为91.8～97.3。与硝酸银滴定法进行比对试验,两种方法测定结果基本一致。离子色谱法操作方便快捷,污染少,测定结果准确、可靠。
A method for determination of chloride in water sample by ion chromatography was established. The concentration of Cl^- was linear with chromatography peak area in the range of 0.40 -4.00 mg/L. The linear equation was A =0.0680c ＋ 0. 001 1 with linear coefficient correlation r = 0.999 5. Relative standard deviations of determining results was 1.01% （ n = 6） , the recoveries were 91.8% -97.3%. The ion chromatography determination results were consistent with those of titrimetric method. The ion chromatogram method is convenient for operation, less pollution, and the determination results are accurate.
出处
《化学分析计量》
CAS
2008年第5期39-40,共2页
Chemical Analysis And Meterage
