G 归东理子大 Analytical Chemistry Chapter 2 Errors and data treatment in quantitative analysis
Analytical Chemistry 2025/4/3 1 Chapter 2 Errors and data treatment in quantitative analysis
归东理子大军 Analytical Chemistry Learning Objective To master the types,characteristics and expression methods of errors; ◆To master the definitions and applications of the precision and the accuracy,and also to understand the relationship between the precision and the accuracy;
Analytical Chemistry 2025/4/3 2 Learning Objective ◆To master the types, characteristics and expression methods of errors; ◆ To master the definitions and applications of the precision and the accuracy, and also to understand the relationship between the precision and the accuracy;
归东觅子大图 Analytical Chemistry To know about the distribution rules of random error,and master the definitions, functions and calculating methods of confidence levels and confidence intervals; To know about the evaluation methods of the quantitative data,realize the importance of improving the accuracy of analytical results;
Analytical Chemistry 2025/4/3 3 ◆ To know about the distribution rules of random error, and master the definitions, functions and calculating methods of confidence levels and confidence intervals; ◆ To know about the evaluation methods of the quantitative data, realize the importance of improving the accuracy of analytical results;
归东理子大军 Analytical Chemistry To master the ways and methods for improving the accuracy of analytical results; To know about the concept of significant figures, and master the rules of the computing and arithmetic rounding off
Analytical Chemistry 2025/4/3 4 ◆ To master the ways and methods for improving the accuracy of analytical results; ◆ To know about the concept of significant figures, and master the rules of the computing and arithmetic rounding off
G 归东觅子大图 Analytical Chemistry 2.1 Fundamental terms of errors 1.The true value/truth u 2.The mean/average/arithmetic mean X= 为+x++x2=∑出 n n 3,median
Analytical Chemistry 2025/4/3 5 2.1 Fundamental terms of errors 1. The true value/truth μ 2. The mean/average/ arithmetic mean n x n x x x x n i = + + + = 1 2 3. median