Sample matrix in IUPAC Gold Book (source code)

= Sample matrix in IUPAC Gold Book
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https://goldbook.iupac.org/terms/view/M03758

M03758, DOI10.1351/goldbook.M03758, matrix in analysis: all sample components other than the analyte. Original recommendation: Nomenclature for automated and mechanised analysis, PAC61,1657(1989), p.1660.