Sentence:  Treatment of the conjugates with <WSD>ethyl</WSD> acetate , and the conjugates ( which had been passed through Dowex-2-chloride ) with mouse liver powder , sweet clover crown gall tissue powder , or healthy sweet clover proteins did not satisfactorily remove nonspecifically staining substances in the conjugates . 
Meaning of the word marked with <WSD> tags:  a fragrant colorless flammable volatile liquid ester made from ethanol and acetic acid; used in flavorings and perfumes and as a solvent for plastics