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Answer Posted / premraj behera
All the packing material(active silanol group) has been end-capped(fixed) with trimethylsilyl/double end-capped with dimethylsilyl and trimethylsilyl group. End-capped stationary phase increase column stability and reducing the solubility rate o f the silica support, and also useful for rugged method development. Double end-capped column appears to further increase column stability.
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