Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a...Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a linear structure by the bis-iodine-axial coordination to the octahedral Cu(Ⅱ) center,which is stabilized by the iodine-aromatic ring(edge and face) and iodine-iodine interactions between the polymer lines,forming a special layer structure. The complex belongs to a triclinic system,space group P 1, a =0.648 4(19) nm, b =0.654 5(19) nm, c =1.911(6) nm, α=85.42(5)°,β=85.78(5)°,γ=72.99(4)°,V =0.772(4) nm 3 and Z=1 .展开更多
A novel reserved\|phase ion\|pair liquid chromatographic method using hexadecyltrimethylammonium bromide（HTMAB） as an ion\|pair reagent for separating the complexes of metal and 8\|hydroxyquinoline\|5\|sulphonic aci...A novel reserved\|phase ion\|pair liquid chromatographic method using hexadecyltrimethylammonium bromide（HTMAB） as an ion\|pair reagent for separating the complexes of metal and 8\|hydroxyquinoline\|5\|sulphonic acid（HQS） coupled with on\|line fluorescence detection has been developed. The chromatographic behavior of metal\|HQS complexes in the proposed system was systematically investigated.When the C\-\{18\} column modified by HTMAB and the suitable mobile phase coupled with fluorescence detection（\%λ\%\-\{ex\}=388 nm; \%λ\%\-\{em\}=518 nm） were employed, the detection limit of cadmium is 7.72 ng/mL with an injection volume of 20 μL, and the linear range of calibration curve for cadmium is 50\800 ng/mL. It was successfully applied to determination of bio\|available cadmium in polluted soils of China. Moreover, the possible species of Cd\|HQS on the column has been investigated by log\|log plot analysis.展开更多
文摘Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a linear structure by the bis-iodine-axial coordination to the octahedral Cu(Ⅱ) center,which is stabilized by the iodine-aromatic ring(edge and face) and iodine-iodine interactions between the polymer lines,forming a special layer structure. The complex belongs to a triclinic system,space group P 1, a =0.648 4(19) nm, b =0.654 5(19) nm, c =1.911(6) nm, α=85.42(5)°,β=85.78(5)°,γ=72.99(4)°,V =0.772(4) nm 3 and Z=1 .
文摘A novel reserved\|phase ion\|pair liquid chromatographic method using hexadecyltrimethylammonium bromide（HTMAB） as an ion\|pair reagent for separating the complexes of metal and 8\|hydroxyquinoline\|5\|sulphonic acid（HQS） coupled with on\|line fluorescence detection has been developed. The chromatographic behavior of metal\|HQS complexes in the proposed system was systematically investigated.When the C\-\{18\} column modified by HTMAB and the suitable mobile phase coupled with fluorescence detection（\%λ\%\-\{ex\}=388 nm; \%λ\%\-\{em\}=518 nm） were employed, the detection limit of cadmium is 7.72 ng/mL with an injection volume of 20 μL, and the linear range of calibration curve for cadmium is 50\800 ng/mL. It was successfully applied to determination of bio\|available cadmium in polluted soils of China. Moreover, the possible species of Cd\|HQS on the column has been investigated by log\|log plot analysis.
