No abstract

Overcoming the matrix effect in LIBS analysis of high-alloyed stainless steel by specifying the temporal parameters of signal registration and multivariate calibration based on PCR.

No abstract

The electrochemical potentials of seven redox transitions for green forms and eight redox transitions for blue forms of neutral octa-tert-butytsubstituted diphthalocyanine complexes of lanthanides pct2Ln (Ln = Pr, Sin, Dy, and Lu) in solutions were measured by cyclic voltammetry and rotating disc electrode techniques. The spectroelectrochemical investigation of the products of two-electron oxidation and reduction of the green form of pct2Lu was performed. The frontier molecular orbitals, total charge densities, total spin densities, electrostatic potentials, and heats of ion formation for (Pc2Y) m+,n-(m = 0, 1, 2, and 3; n = 1, 2, 3, and 4), which can model the products of the redox transitions of the diphthalocyanines under study, were calculated using the semiempirical ZINDO/I method. The calculations for (Pc2Y) m+,n-and absorption spectra show that the electron changes in all redox transitions of the green forms of pct~Ln are mainly localized on the ligands.

No abstract