Performance characteristics of analytical methods-IV.
Sources of systematic errors in analytical results are discussed, and suggestions are made for the investigation and reporting of such errors when characterizing the performances of analytical methods. The four types of error considered arise from: (1) blank determinations, (2) calibration, (3) differences in the efficiencies with which different forms of the determinand are measured, and (4) interferences. The comparison of results with accepted values of standard samples or with the results obtained by standard methods is also discussed.
Wilson
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Water Research Centre (Medmenham Laboratory), Medmenham, Bucks, U.K.