Transcription of Introduction to method validation
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Introduction to method validation
method validation Seminar June 06 2006 LGC Limited1 Introduction to method validationVicki BarwickLGCO verview What is method validation ? Why is method validation necessary? When and how do you validate a method ? method performance parameters How do you assess fitness-for-purpose?What is validation ? The confirmationby examination and the provision of objective evidencethat the particular requirements for a specific intended useare fulfilled specific intended use = analytical requirement objective evidence = experimental data( method performance parameters) confirmation (from comparison of requirement with evidence)[ISO/IEC 17025 definition] method validation Seminar June 06 2006 LGC Limited2 Why is method validation necessary?
– are there any interferences? Measures of quality Precision, bias and accuracy bias improvingprecision improvingtrueness i m p r o v i n g a c c u r a c y Different precision measures Increasing σ between aliquots within batch between measurement batches between laboratories repeatability (s r) reproducibility (s R) Precision is expressed ...
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