Statistics and chemometrics for analytical chemistry
著者
書誌事項
Statistics and chemometrics for analytical chemistry
Pearson Prentice Hall, 2005
5th ed.
- : pbk
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
This popular textbook gives a clear account of the principles of the main statistical methods used in modern analytical laboratories. Such methods underpin high quality analyses in areas such as the safety of food, water and medicines, environmental monitoring, and chemical manufacturing. The treatment throughout emphasises the underlying statistical ideas, and no detailed knowledge of mathematics is required. There are numerous worked examples, including the use of Microsoft Excel and Minitab, and a large number of student exercises, many of them based on examples from the analytical literature. This book is aimed at undergraduate and graduate courses in Analytical Chemistry and related topics. It will also be a valuable resource for researchers and chemists working in analytical chemistry.
目次
1. Introduction 1.1 Analytical problems 1.2 Errors in qunatitative analysis 1.3 Types of error 1.4 Random and systematic errors in titrimetric analysis 1.5 Handling systematic errors 1.6 Planning and design of experiments 1.7 Calculators and computers in statistical calculations 2. Statistics of Repeated Measurements 2.1 Mean and standard deviation 2.2 The distribution of repeated measurements 2.3 Log-normal distribution 2.4 Definition of a 'sample' 2.5 The sampling distribution of the mean2.6 Confidence limits of the mean for large samples 2.7 Confidence limits of the mean for small samples 2.8 Presentation of results 2.9 Other uses of confidence limits 2.10 Confidence limits of the geometric mean for a log-normal distribution 2.11 Propagation of random errors 2.12 Propagation of systematic errors 3. Significance Tests 3.1 Introduction 3.2 Comparison of an experimental mean with a known value 3.3 Comparison of two experimental means 3.4 Paired t-test 3.5 One-sided and two-sided tests 3.6 F-test for the comparison of standard deviations 3.7 Outliers 3.8 Analysis of variance 3.9 Comparison of several means 3.10 The arithmetic of ANOVA calculations 3.11 The chi-squared test 3.12 Testing for normality of distribution 3.13 Conclusions from significance tests 4. The Quality of Analytical Measurements 4.1 Introduction 4.2 Sampling 4.3 Separation and estimation of variances using ANOVA 4.4 Sampling strategy 4.5 Quality control methods - Introduction 4.6 Stewhart charts for mean values 4.7 Stewhart charts for ranges 4.8 Establishing the process capability 4.9 Average run length: cusum charts 4.10 Proficiency testing schemes 4.11 Collaborative trials 4.12 Uncertainty 4.13 Acceptable sampling 5. Calibration Methods in Instumental Analysis 5.1 Introduction: instrumentational analysis 5.2 Calibration graphs in instrumental analysis 5.3 The product-moment correlation coefficient 5.4 The line of regression of y on x 5.5 Errors in the slope and intercept of the regression line 5.6 Calculation of a concentration and its random error 5.7 Limits of detection 5.8 The method of standard additions 5.9 Use of regression lines for comparing analytical methods 5.10 Weighted regression lines 5.11 Intersection of two straight lines 5.12 ANOVA and regression calculations 5.13 Curvilinear regression methods - Introduction 5.14 Curve fitting 5.15 Outliers in regression 6. Non-parametric and Robust Methods 6.1 Introduction 6.2 The median: initial data analysis 6.3 The sign test 6.4 The Wald-Wolfowitz runs test 6.5 The Wilcoxon signed rank test 6.6 Simple tests for two independent samples 6.7 Non-parametric tests for more than two samples 6.8 Rank correlation 6.9 Non-parametric regression methods 6.10 Robust methods 6.11 Robust regression methods 6.12 The Kolmogorov test for goodness of fit 6.13 Conclusions 7. Experiimental Design and Optimization 7.1 Introduction 7.2 Randomization and blocking 7.3 Two-way ANOVA 7.4 Latin squares and other designs 7.5 Interactions 7.6 Factorial versus one-at-a-time design 7.7 Factorial design and optimization 7.8 Optimization: basic principles and univariate methods 7.9 Optimization using the alternating variable search method 7.10 The method of steepest ascent 7.11 Simplex optimization 7.12 Simulated annealing 8. Multivariate Analysis 8.1 Introduction 8.2 Initial analysis 8.3 Prinicipal component analysis 8.4 Cluster analysis 8.5 Discriminant analysis 8.6 K-nearest neighbour method 8.7 Disjoint class modelling 8.8 Multiple regression 8.9 Principal component regression 8.10 Multivariate regression 8.11 Partial least squares regression 8.12 Multivariate calibration 8.13 Artificial neural networks 8.14 Conclusions Solutions to Exercises Appendix 1 Commonly used statistical significance tests Appendix 2 Statistical tables Index
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