离子色谱法同时测定水样中F^-、Cl^-、SO_4^(2-)、NO_3^-结果不确定度评估(Ⅰ)  

Evaluation of the Uncertainty in Analysis of F^-、Cl^-、SO_4^(2-)、NO_3^- in Water with IC

作　　者：刘华[1] 徐增康[1] 梁晓聪[1] 

机构地区：[1]陕西省疾病预防控制中心,西安710054

出　　处：《中国自然医学杂志》2007年第4期307-309,共3页Chinese Journal of Natural Medicine

摘　　要：目的对离子色谱法同时测定水样中F-、Cl-、SO42-、NO3-结果不确定度进行评估。方法实验采用单点校正方法。参考《化学分析中不确定度的评估指南》,对实验过程中可能产生不确定度的来源进行分析并量化。结果当水样中F-、Cl-、SO42-、NO3-的浓度分别在2.54、5.73、14.98、3.60mg/L时,各自的扩展不确定度分别为±0.048、±0.082、±0.220、±0.040mg/L。结论所用方法能够满足同时测定水样中F-、Cl-、SO42-、NO3-的测量要求。Objective To expresses the uncertainty in analyses of F^-、Cl^-、SO4^2-、NO3^- in water with IC. Methods This experiment has been-done and calculated with method of single calibration point. And analyzed what the uncertainty came from and calculated mainly refering to The Guide to the Expression of Uncertainty in Chemical Analyses. Results The expanded-uncertainty of F^-、Cl^-、SO4^2-、NO3^- was ±0.048, ±0.082, ±0.22, ±0.040 mg/L, when the content of F^-、Cl^-、SO4^2-、NO3^- in water was 2.54, 5.73, 14.98, 3.60 mg/L. Conclusion The method that we used can reach the require ment to analyze F^-、Cl^-、SO4^2-、NO3^- in water.

关 键 词：离子色谱法 水样 F^-、Cl^-、SO4^2-、NO3^- 不确定度评估 

分 类 号：R917[医药卫生—药物分析学]