test portion

Synonym: analytical portion
https://doi.org/10.1351/goldbook.T06284
The amount or volume of the @T06285@ taken for analysis, usually of known @W06668@ or volume.
Source:
PAC, 1989, 61, 1657. (Nomenclature for automated and mechanised analysis (Recommendations 1989)) on page 1660 [Terms] [Paper]