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ISO 5725 (1994-1998): Accuracy (Trueness and Precision) of Measurement Methods and Results (6 Parts). There Are New Versions of Part 2 (2019) and Part 4 (2020).

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• TITLE: Consequences of Insufficient Selectivity in Quantitative and Qualitative Chemical Analysis

  AUTHORS: Mats Larsson, Göran Nilsson

  KEYWORDS: Chemical Analysis, Quantitative and Qualitative Selectivity, Chemical Measurement Procedures, Measurement Errors, Chemical Noise

  JOURNAL NAME: Journal of Analytical Sciences, Methods and Instrumentation, Vol.13 No.2, June 30, 2023

  ABSTRACT: A problem in chemical analysis in connection with measurements of a substance normally occurring in a sample, or identification of a substance which should not exist in a sample, is insufficient selectivity. In this article, we analyze this problem and propose remedies. We use a real doping case to illustrate how chemical noise causes a serious selectivity problem, probably causing a false positive outcome.