Sentence:  In our work the best procedure for removing substances causing nonspecific staining in order to obtain specific <WSD>conjugates</WSD> was to pass the conjugates through a DEAE-cellulose column and in some cases to absorb the first and second milliliter fractions with sweet clover tissue powder . 
Meaning of the word marked with <WSD> tags:  a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A