Back-flush solution -High boiking point compounds flushed away

The Shimadzu back-flush solution is very precise.Figures 3a and 3b show two chromatograms of Grob test mixture with compounds of different Polarities: a) without back-flush and b) with back-flush after 10 min chromatogram tuntime. In the segond chromatogram the unwanted high boiling point peaks are completely climinated. In both chromatograms the peak shape is symmtric (Figure 4) i.e. no adsorption of the compounds occurs, showing the inertness of the back-flush device.

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Shimadzu News 2/2008
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Gas Chromatography
back-flush solution, Hydrocarbon Processing Industry (Petrochemical, Chemical)
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