Fig. 2From: Interpreting comprehensive two-dimensional gas chromatography using peak topography maps with application to petroleum forensicsStep-by-step PTM construction Target biomarkers are labeled and itemized in Table S2. Total number of detected biomarker peaks (target and non-target) = 111, after removing peaks occupying lowest \(5\,\%\) of the \(GC\times GC\) peak magnitude profile as baseline noise. Range of considered peak summits (highest:lowest) = 14.53:1Back to article page