离子色谱法测定地下水中的乙酸根含量  

DETERMINATION OF Ac IN THE GROUNDWATER BY ION CHROMATOGRAPHY

作　　者：王泽俊[1] 崔丽英[1] 张秋跃 李广玉[2] 

机构地区：[1]济南市环境保护科学研究所,济南250014 [2]山东科技大学,泰安271019

出　　处：《化学分析计量》2004年第1期46-47,共2页Chemical Analysis And Meterage

摘　　要：对地下水样品除氯后,选用1.35mmol/L Na_2CO_3-1.00mmol/L NaHCO_3混合溶液作淋洗液,用离子色谱法测定地下水样品中乙酸根的含量,乙酸根浓度在0～5.00mg/L范围内与电导率峰高呈线性关系,线性回归方程为H=15950.6c-442.7,相关系数为0.9994,方法的检出限为0.05mg/L,加标回收率为101％～110％,测定结果的相对标准偏差为2.3％。After removing the chloride ion in the groundwater sample, Ac- in the groundwater sample was determined by ion chromatography with 1.35 mmol/L Na2CO3 - 1.00 mmol/L NaHCO3 mixed solution as eluent. There is a linear relationship between the peak height with the concentration of Ac- in the range of 0 - 5. 00 mg/L. The linear regression equation is H = 15950. 6c -442. 7, the correlative coefficient is 0.9994. The detection limit is 0. 05 mg/L, the recovery is 101 % ~ 110% and the relative standard deviation is 2.3%.

关 键 词：地下水 乙酸根 含量测定 离子色谱法 

分 类 号：P641.12[天文地球—地质矿产勘探]