six fractions ( i-vi ) of pyridoxal 5'-phosphate ( plp ) hemoglobin ( hb ) , prepared by the method of de venuto and zegna [ j. surg . res. , 34 ( 1983 ) 205 ] have been isolated and purified by anion-exchange high-performance liquid chromatography ( hplc ) .
C0021966
i
C0003075
anion