ИСТИНА

ultinucleon transfer reactions are one of several accelerating methods to produce neutron-rich isotopes heavier einsteinium [1]. Predictable half-lives of new isotopes of actinides after Es are low and we need to improve classical technique based on cation-exchange chromatography with ammonium α-hydroxyisobutyrate (α-HIB) solution as an eluent [2] for separation of actinide (III) series. However, the activity of producing isotopes is different and positions of elements such as Md, No, Lr are bad-known on chromatogram. New technique is required to be highly sensitive and effective for actinide separation and to allow making quick separation and predicting positions of Md, No and Lr. Having used equation of mass transfer equation and numerical methods, we improved this technique and determined distribution coefficients, heights of theoretical plates and influence of equal concentration of α -HIB on distribution coefficients. To choose likelihood chromatogram we used minimum of chi-square criterium.