摘要
目的:为减少实验误差,提高检测结果精确度,评定饮用水中PH测量结果的不确定度。方法:分析饮用水中PH测量结果的不确定度的来源,通过计算得出该法测定饮用水中PH测量结果的扩展不确定度。结果:不确定度评定结果为PH=7.68±0.03,p=95%。结论:该方法操作简便,可参考用于水中检测参数的不确定度评定。
Objective : To evaluate the uncertainty of measuring pH in drinking water.This study was to decrease experimental error and increase the accuracy of results. Methods: The source of Measurement uncertainty of the pH in water was analyzed and assessment on uncertainty of pH determination in water was calculated. Results: The result showed that the expanded uncertainty was pH=7.68 ± 0.03,p=95% and the method was fit for the same kind of the samples. Conclusion: The method was easy and fit for various samples and the method was for reference to assessment on uncertainty of others parameters determination in water.
出处
《福建分析测试》
CAS
2012年第5期30-32,共3页
Fujian Analysis & Testing
关键词
生活饮用水
复合电极
不确定度
drinking water
electrode assembly pH
uncertainty