SRL for [resolved]: This 3 - hr sievorptive column removed amonium sulfate , ribosomes , and nucleic acids from the sample while it [resolved] the proteins by ion exchange , thereby effectively accomplishing the steps normally done by dialysis , ultracentrifugation , streptomycin precipitation , and ion exchange chromotography .
ARG-0: it | ARG-1: the proteins | ARG-3: by ion exchange