高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 208.

• Chromatography and Separation Sciences • 上一篇    下一篇

Electrostatic Retention Mechanism of 2,2'-Dihydroxyazobenzene-Metal chelates on Octadecylsilanized Silica Stationary Phase

Takashi Kurasawa, Toru Takahashi, Emiko Kaneko, Takao Yotsuyanagi   

  1. Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
  • 出版日期:1999-12-31 发布日期:1999-12-31

Electrostatic Retention Mechanism of 2,2'-Dihydroxyazobenzene-Metal chelates on Octadecylsilanized Silica Stationary Phase

Takashi Kurasawa, Toru Takahashi, Emiko Kaneko, Takao Yotsuyanagi   

  1. Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
  • Online:1999-12-31 Published:1999-12-31

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摘要：

The chelating agent 2,2'-dihydroxyazobenzene (DHAB), as shown in Fig. 1, was superior to the determination of trace metal ions by HPLC with ion-pair partition mode. Among the DHAB-metal chelates, only the cationic DHAB-aluminium 1:lchelate,[AIL]+, is fluorescent. Thus this chelate is expected to be applicable for selective and sensitive determination of aluminium ion by HPLC. However, the retention behavior of[AlL]+ on octadecylsilanized silica stationary phase was not well understood. The interaction between[A1L]+ and octadecylsilanized silica stationary phase has been investigated.

Abstract:

The chelating agent 2,2'-dihydroxyazobenzene (DHAB), as shown in Fig. 1, was superior to the determination of trace metal ions by HPLC with ion-pair partition mode. Among the DHAB-metal chelates, only the cationic DHAB-aluminium 1:lchelate,[AIL]+, is fluorescent. Thus this chelate is expected to be applicable for selective and sensitive determination of aluminium ion by HPLC. However, the retention behavior of[AlL]+ on octadecylsilanized silica stationary phase was not well understood. The interaction between[A1L]+ and octadecylsilanized silica stationary phase has been investigated.

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