- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
Article Detail
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Studies on The Elution Behavior of Ni(II)-<TEX>${\alpha}$</TEX>-isonitroso-<TEX>${\beta}$</TEX>-diketone Imine Chelates in Reversed-Phase Liquid Chromatography
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.4, pp.519-527
Lee,
W., Kim,
I., Kim,
M., Kim,
Y., Jung,
H., No,
K., &
Kim,
S.
(1995). Studies on The Elution Behavior of Ni(II)-<TEX>${\alpha}$</TEX>-isonitroso-<TEX>${\beta}$</TEX>-diketone Imine Chelates in Reversed-Phase Liquid Chromatography. , 8(4), 519-527.
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Abstract
The retention mechanism of Ni(II)-<TEX>${\alpha}$</TEX>-isonitroso-<TEX>${\beta}$</TEX>-diketone imine chelates in reversed-phase HPLC has been studied by examining the effect of temperature, mobile phase composition in acetonitrile-water mixture, and molecular structure on retention. The empirical retention equation was investigated to evaluate the properties of S (hydrophilic index). The value of the S index of the Ni(II) chelates decrease with the increasing column temperature and a linear relationship between S and log <TEX>$k{_w}^{\prime}$</TEX> has been found. The results showed that the S index is influenced by the interaction between Ni(II) chelates and mobile phase. Molecular properties, van der Waals molar volume, polarizability and dipole moment, of the Ni(II) chelates were calculated by Cerius 2 program and the calculations were performed at Universal Force Field (UFF) model. The S value and log <TEX>$k{_w}^{\prime}$</TEX> increase with decreasing the dipole moment of Ni(II) chelates.
- keywords
- RPLC, Ni(II) Chelate, Molecular Structure
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