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A simple, reliable procedure for practically quantitative (90–98%) and fast (<30 min) elution of proteins from SDS-PA gels is described with reproducible recoveries in the range from 100 to 1 pmol per band, which does not require the inclusion of detergents in the elution buffer. It consists in the combination of (1) highly sensitive on-gel protein detection (50 mol per band) with imidazole-SDS-zinc...
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