摘要
[目的]为有针对性的开发利用剑江河水提供参考依据。[方法]以流速为1．2ml／min的2.4mmol/L Na2CO3＋3．0mmol／L NaHCO3作为淋洗液，采用YSA型8180A-4 #分离柱和WIC-Ⅱ型电导检测器，研究离子色谱法，同时测定河水中常见的3种阴离子Cr、NO3^-和SO4^2-。[结果]结果表明，可以在15min内1次性检测出3种离子，3种离子的线性范围为0．12～0.20mg／ml，线性相关系数r〉0.9983，变异系数0．4019％～2．5411％，方法回收率为98．57％～102．14％。[结论]该方法用于测定剑江河水中常见的阴离子是可行的。
[ Objective ] The study aimed to provide the reference basis for exploitating and using Jianjiang rivers. [ Method ] A 2.4 mmul/L Na2CO3 ＋ 3.0 mmol/L NaHCO3 of solution with a flow rate 1.2 ml/min was used,adopting YSA 8180A-4 # high separating column and WIC-Ⅱ electrochemical detector,ion chromatography for the simultaneous detennination of three inorganic anions Cl^-、 NO3^- and SO4^2- in the ambient samples was studied. [ Result] The results indicated that three anions were detected in 15 minutes, the correlation coefficient rage was 0.12- 0.20 mg/ml, the coefficients was more than 0. 998 3, the RSD was 0.401 9% - 2.541 1%, and the recoveries was 98.57% - 102.14%. [ Conclusion]This method is feasible of detecting the familiar anions in the Jianjiang rivers.
出处
《安徽农业科学》
CAS
北大核心
2008年第30期13018-13019,13042,共3页
Journal of Anhui Agricultural Sciences
关键词
阴离子
测定
离子色谱
Anionic
Determination
Ion chromatography
