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Answer Posted / bhagavanji nelakanti
Masking of secondary silanol groups of bonding phase by tri
methyl silane (TMS)molecules is called as end capping. In
the bonded phase the secondary silanol molecules which shows
high polar bonding property with compound retains in the
column and those compounds elute slowly. Because of the end
capping the binding property of the secondary silanol
molecules will reduce and resulting less retention of those
compounds.
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