Evaluation of stability constants from multi-wavelength absorbance data: program STAR
作者： J.L. Beltrán , R. Codony , M.D. Prat
DOI: 10.1016/0003-2670(93)80415-H
关键词: Ionic bonding 、 Star (graph theory) 、 Absorbance 、 Stability constants of complexes 、 Smoothing 、 Dissociation (chemistry) 、 Chemistry 、 Analytical chemistry 、 Data matrix (multivariate statistics) 、 Absorption spectroscopy
摘要: Abstract The program STAR and STAR/FA were developed for the study of ionic equilibria from spectrophotometric data. Both programs are written in Turbo-Pascal use on personal computers. is a non-linear regression refinement complex formation constants systems that can be described by up to 5 components 25 species A p B q C r D s H t , where A, B, either metal or ligand. experimental data treated contain 50 absorption spectra, measured at wavelengths. Interaction with user provided menu-driven operation graphics presentation computer screen (or plotter). complementary program, used determination number absorbing factor analysis absorbance matrix. It also smoothing Two application examples given: interaction boric acid 2,3-dihydroxynitrobenzene (from literature data) dissociation Zn(II) ions 8-hydroxyquinoline-5-sulphonic acid.
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