Sample stability studies for environmental analysis
The concentration of an analyte in a sample may change with time through chemical or biological degradation. Analysts must therefore establish a set of conditions that ensure that any such change occurring between sampling and analysis is negligible. These conditions can be defined by specifying: (a) the sample container; (b) transport and storage requirements; and (c) maximum holding times in storage before analysis.
- This article is part of the themed collection: Analytical Methods Committee Technical Briefs