Acceleration of metal ion incorporation into cationic porphyrin by 5-sulfo-8-quinolinol, and spectrophotometric determination of nickel(II)

被引：7

作者：

Kawamura, K ^{[1
]}

Igarashi, S

Yotsuyanagi, T

机构：

[1] Osaka Prefecture Univ, Dept Appl Chem, Osaka 5998531, Japan

[2] Ibaraki Univ, Fac Engn, Dept Mat Sci, Ibaraki 3168511, Japan

[3] Miyagi Natl Coll Technol, Natori, Miyagi 9811239, Japan

来源：

MICROCHIMICA ACTA | 2006年 / 153卷 / 3-4期

关键词：

UV-visible spectrophotometry; water-soluble porphyrin; hydrothermal reactions; accelerator; nickel;

D O I：

10.1007/s00604-005-0458-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The incorporation of metal ions into 5,10,15,20-tetrakis(4-N-methylpyridyl)porphine (TMPYP) were significantly accelerated by 5-sulfo-8-quinolinol (SQN). The formation of Ni-TMPYP was completed within 5min at 100 degrees C. Based on the comparison of the acceleration effect of SQN with 8-quinolinol (QN), it was deduced that the acceleration of the incorporation reaction is mainly due to the enhancement of the formation of the outer-sphere associate of Ni(II)-SQN complex with TMPYP, in which the association is enhanced by both electrostatic and hydrophobic interactions between TMPYP and Ni(II)-SQN. This finding was applied to the spectrophotometric determination of Ni(II).

引用

页码：145 / 150

页数：6

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