摘要
使用连续流动注射分析法测定水中总氰化物的质量浓度.结果表明,在0~0.1 mg/L质量浓度范围内,该方法的标准曲线线性好,相关系数为0.999 9,检出限为0.44μg/L,测定标准样品的相对误差为-0.38%,-4.4%,相对标准偏差为0.58%,1.02%,实际样品加标回收率在92.0%~108.5%,可满足日常水质分析的要求.
Continuous flow injection analysis was used to determinate the total cyanide in water.The experimental results show that in the concentration range of 0~0.1 mg/L,the linearity of the tandard curve is good,the coefficient of correlation is 0.999 9,the detection limit is 0.44μg/L,the relative error of standard sample are-0.38%,-4.4%,the relative standard deviation are 0.58%,1.02%,the addition recovery rate of actual sample are 92.0%~108.5%,suitable for the daily water quality analysis.
作者
郑延清
ZHENG Yan-qing(Quanzhou Environmental Monitoring Station,Quanzhou 362000,China)
出处
《高师理科学刊》
2018年第6期55-58,共4页
Journal of Science of Teachers＇College and University
关键词
流动注射
总氰化物
测定
flow injection
total cyanide
determination
