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Comparison (control) sample

A sample of unburned substrate collected from the same room or proximate unburned area as the fire debris sample, of the same substrate type. Analysed under identical GC-MS conditions to provide the substrate background chromatogram for subtraction.

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Related terms

4-Vinylcyclohexene (4-VCH)Alkene triplet patternBackground subtractionPrincipal component analysis (PCA)PyrolysisSubstrate interferentSWGFEX Type C interferent listType C interferent (E1618)Unresolved complex mixture (UCM)

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