chemometrics

The application of independent component analysis algorithms for simultaneous determination of non-ferrous metals and metals of platinum group in their two- and three-component model mixtures was studied. The comparison between different chemometrical algorithms MILCA, SNICA, SIMPLISMA, RADICAL, JADE was made. The MILCA is the most effective algorithm for analysis of studied systems. The qualitative and quantitative analysis of artificial mixtures of systems of different metals was made.

Arginine and lysine are the most important ?-amino acids that are part of many proteins, which play an important role in the processes of nitrogen metabolism, growth and restoration of body tissues. It is used in medical nutrition in the postoperative recovery period, as well as as diagnostic factors. The simple express methods of separately determining the main ?-amino acids of arginine and lysine in their mixed solutions are in demand.