WHILE, so far, the spot test on filter paper, developed by Dr. F. Feigl and his co-workers, has been used exclusively for qualitative purposes, we have discovered a method for the estimation of ...
Thin layer chromatography is used to analyse mixtures: determine the number, identity, and purity of compounds present in a mixture. This technique can also be used to visualize the progress of a ...
ONE of the difficulties encountered in investigating the metabolism and distribution of catecholamines has been the inadequate separation and isolation of these substances from tissue extracts 1.