Summary
It is taken as an initial conception that the general aim of quantitative analysis is measurement by specific, mainly analytical, methods and instruments. Another important initial position is the necessity to specify the required accuracy of analytical data, taking into account the contribution of analytical error within the error of the whole test result which includes contributions from other sources (sampling, sample storage, transporting, etc.).
The approaches to validation of accuracy of field analysis are considered. Taking into account all factors mentioned above, the principles and methods of demonstration of accuracy are stated.
The main sources of uncertainty of the really insured accuracy are pointed out. The typical scheme of activity optimization of analytical subdivisions and those systems which use the results on the chemical composition of substances is described. The peculiarities of obtaining basic data and their usage for quality control of field analytical results are discussed.
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Shaevich, A.B. Analytical service: systematic approach to the activity optimization according to accuracy criterion of analysis results. Z. Anal. Chem. 335, 9–14 (1989). https://doi.org/10.1007/BF00482384
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DOI: https://doi.org/10.1007/BF00482384