Experimental Analysis of Total Hardness Precision Bias
Precision bias testing is an important means to measure the applicability of analytical methods and the technical level of analysis.By continuously monitoring multiple different experimental samples for multiple days,the detection results are analyzed and quality control charts are drawn.The EDTA titration method was used to conduct precision bias tests on the total hardness of water and draw quality control charts to determine the precision and accuracy of laboratory measurement results.The statistical results indicate that all indicators of total hardness measured by this method meet the internal quality control requirements of the laboratory.
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