CHM 2354 Lecture Notes - Lecture 4: True Value, Analyte, Internal Standard
25 May 2015
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Document Summary
Quality assurance: an overall management plan to guarantee the integrity of data (the system ) includes everything, and quality control. Planned activities designed to ensure that the quality control activities are being properly implemented. Quality control: a series of analytical measurements used to assess the quality of the analytical data (the. Planned activities designed to provide a quality product. True value: the known, accepted value of a quantifiable property. Measured value: the result of an individual"s measurement of a quantifiable property. Accuracy: how will a measurement agrees with an accepted value. Precision: how well a series of measurements agree with each other. Systemic: avoidable error due to controllable variables in a measurement. Random: unavoidable errors that are always present in any measurement impossible to eliminate. Quality control measures: standards and calibration, blanks, recovery studies, precision and accuracy studies, method detection limits.
