Sera from patients with different courses of chronic renal failure and healthy persons were separated by gel permeation chromatography,and the concentration of middle molecular fraction B were calculated.The concentra...
A uremic toxic compound with molecular weight 1007.94 was determined to be an octapeptide by mass spectrometry.Its amino-acid sequence was given as follos: Val-Val-Arg-Gly-Cys-Thr-Trp-Trp.Spin systems for amino acid r...
Sera and urine from patients with severe uremia and healthy persons were separated by means of gel permeation chromatography on Sephadex G-15 column with N(C2H5)3-H2CO3 buffer as the eluent. Two middle molecular pe...