The random fluctuations occurring in a signal that are inherent in the combination of instrument and method.
Source: PAC, 1989,
61, 1657. (
Nomenclature for automated and mechanised analysis (Recommendations 1989)) on page 1663 [
Terms] [
Paper]
See also: PAC, 1995,
67, 1745. (
Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection of radiation (IUPAC Recommendations 1995)) on page 1750 [
Terms] [
Paper]