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QICID: 20474
Title: Calibration, Error Analysis, and Ongoing Measurement Process Monitoring for Mass Spectrometry
Copyright: 2006, ASQ and Taylor & Francis Group, LLC
Author: Vardeman, Stephen B.; Wendelberger, Joanne R.; Wang, Lily
Organization: Iowa State University, Ames, IA; Los Alamos National Laboratory, Los Alamos, NM;
Subject: Bayesian methods,Control limits,Moment estimation,Propagation of errors,Sensitivity analysis,Standard errors,Variance components,Variation;
Series: Quality Engineering, Vol. 18, No. 2, April 2006, pp. 207-217
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Abstract: [This abstract is based on the authors' abstract.]The problems of quantifying and monitoring accuracy and precision of measurement in mass spectrometry are considered when there are unavoidable periodic changes in instrument sensitivity. The issue of estimating instrument sensitivity based on data from a typical calibration study is considered, and then the precision of an estimate of the mole fraction of a gas of interest in an unknown is assessed. Finally, the problem of ongoing measurement process monitoring is examined, and the appropriate use of Shewhart control charts in this application is demonstrated.
Number of pages: 11
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