Issue 6, 2012

Precision in chemical analysis: a critical survey of uses and abuses

Abstract

Precision is a key quantity in assessing the quality of chemical measurement results. It enters into considerations of uncertainty, fitness for purpose, method validation, instrumental performance, internal quality control, proficiency testing, and higher-level activities. The standard deviation of measurement results derived from a single analytical ‘system’ (a combination of a particular analytical procedure and a specific type of test material) depends on many factors, including the conditions of measurement, the state of the test material, and the concentration of the analyte. It is essential that these factors are properly matched to the use to which the precision information will be put.

Graphical abstract: Precision in chemical analysis: a critical survey of uses and abuses

Article information

Article type
Critical Review
Submitted
23 Jan 2012
Accepted
24 Apr 2012
First published
25 Apr 2012

Anal. Methods, 2012,4, 1598-1611

Precision in chemical analysis: a critical survey of uses and abuses

M. Thompson, Anal. Methods, 2012, 4, 1598 DOI: 10.1039/C2AY25083G

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