I want to remove a 33nt RNA from a small quantity pool of total RNA (couple hundred ng). What kind of technique/kits should I use? Does Ampure XP beads work for RNA? or there is another beads for RNA size-selection? In ion total RNA V2 kits, there is a Nucleic Acid Binding Beads for purification of fragmented RNA. I'm wondering if it's Ampure XP beads? If Ampure XP beads works, may I titrate PEG4000/aqueous phase ratio for size selection? Any recommendation is welcome.
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