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  Indian J Med Microbiol
 

Figure 2: Typical contour plot of main co-eluting peaks in comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry chromatogram of non-fumigated Angelicae sinensis Radix sample from 624s to 654s

Figure 2: Typical contour plot of main co-eluting peaks in comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry chromatogram of non-fumigated <i>Angelicae sinensis</i> Radix sample from 624s to 654s