Fig. 1From: A useful procedure for detection of polyamines in biological samples as a potential diagnostic tool in cancer diagnosisExtraction efficiency of putrescine (Ptr), cadaverine Cdr), spermine (Spm) and spermidine (Spd) form urine by flat sheet supported liquid membrane in dependence of pH of the acceptor phase: (a) 0.1 M HCl as acceptor phase, (b) 1 M HCl as acceptor phase. Concentration of polyamines in donor phase is 50 μMBack to article page