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Why does the metal content of a silica particle contribute to the peak shape of my chromatogram?

April 26, 2017chromatogram content contribute metal particle peak shape silica

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Why does the metal content of a silica particle contribute to the peak shape of my chromatogram?

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The electron withdrawing properties of trace metals in silica particles enhances the negativity of surface silanol groups and contributes to peak tailing in silicas with high levels of trace metals.