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Insoluble Material in The Oligo Sample Tube

My Oligo Sample Tube Contain Insoluble Material

Occasionally, there may be some carryover of solid support to the sample tube. It appears as an insoluble, granular solid. It is chemically inert and will not affect enzyme reactions. The solid can be removed by briefly spinning the sample in a microfuge and transferring the oligonucleotide solution to a new tube.