2,2′-Dihydroxyazobenzene derivatives as reagents for trace metal determination by ion-pair reversed-phase high-performance liquid chromatography with spectrophotometric detection
2,2′-Dihydroxyazobenzene derivatives as reagents for trace metal determination by ion-pair reversed-phase high-performance liquid chromatography with spectrophotometric detection
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2,2′-二羟基偶氮苯衍生物作为离子对反相高效液相色谱分光光度检测法测定痕量金属的试剂
DOI:
10.1039/an9901500133
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发表时间:
1990
期刊:
影响因子:
4.2
通讯作者:
T. Yotsuyanagi
中科院分区:
文献类型:
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作者:
H. Hoshino;Kouji Nakano;T. Yotsuyanagi
2,2′-Dihydroxyazobenzene and five substituted analogues have been examined as pre-column chelating agents for the determination of trace metal ions by reversed-phase high-performance liquid chromatography (RP-HPLC) with spectrophotometric detection. Seven metal ions, viz., AlIII, CoIII, CuII, FeIII, MoVI, VV and ZnII, were detected as their azo chelates in the ion-pair RP mode. The optimum conditions, including pH for colour formation, column used, mobile phase parameters and detection wavelength, were investigated for each individual reagent. The method was applied to the determination of Al and Fe in coal fly ash samples. The kinetic nature and the forms of the chelates responsible for the selectivity of RP-HPLC towards metal ions are discussed in terms of “kinetic differentiation” together with ion-pair RP partition phenomena.
影响因子:
4.1
作者:
M. Kanbayashi;H. Hoshino;T. Yotsuyanagi
通讯作者:
M. Kanbayashi;H. Hoshino;T. Yotsuyanagi
DOI:
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发表时间:
2006
期刊:
影响因子:
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作者:
通讯作者:
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DOI:
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发表时间:
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期刊:
影响因子:
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作者:
通讯作者:
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