Kinetic study of fast complexation of zinc(II) with 8-quinolinol and 5-octyloxymethyl-8-quinolinol at 1-butanol/water interface by two-phase sheath flow/laser-induced fluorescence microscopy
Kinetic study of fast complexation of zinc(II) with 8-quinolinol and 5-octyloxymethyl-8-quinolinol at 1-butanol/water interface by two-phase sheath flow/laser-induced fluorescence microscopy
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通过两相鞘流/激光诱导荧光显微镜研究锌(II)与8-羟基喹啉和5-辛氧基甲基-8-羟基喹啉在1-丁醇/水界面快速络合的动力学研究
DOI：
10.1246/bcsj.76.1569
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发表时间：
2003
影响因子：
4
通讯作者：
H. Watarai
中科院分区：
文献类型：
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作者：
T. Tokimoto;S. Tsukahara;H. Watarai
用两相鞘流/激光诱导荧光显微镜研究了锌（II）与8-羟基喹啉（Hqn）和5-辛氧基甲基-8-羟基喹啉（Hocqn）在正丁醇/水界面上的快速络合动力学。在流动池中构建了微米级两相鞘流体系，其中正丁醇相作为内流引入，水相作为外流引入。从锌（II）络合物发射的荧光通过物镜透镜校正，并用CCD照相机检测。结果表明，荧光强度在界面处有一个最大值，并随反应时间的延长而增大，直至界面形成后2 ms。络合速率随有机相中配体初始浓度的增加而增加，呈现饱和曲线。在同等条件下，Hqn与Zn（II）的络合速率比Hocqn快3倍。数值模拟考虑了界面的影响。
The kinetics of the fast complexation of zinc(II) with 8-quinolinol (Hqn) and 5-octyloxymethyl-8-quinolinol (Hocqn) at the 1-butanol/water interface was investigated with two-phase sheath flow/laser-induced fluorescence microscopy. The micrometer-sized two-phase sheath flow system was constructed in a flow cell, in which the 1-butanol phase was introduced as an inner flow and the aqueous phase as an outer flow. The fluorescence emitted from the zinc(II) complex was corrected by an objective lens, and detected with a CCD camera. It was revealed that the fluorescence intensity had a maximum value at the interfacial region, and increased with the reaction time up to 2 ms after the formation of the interface. The complexation rate increased with the increase of the initial ligand concentration in the organic phase, giving a saturation curve. The complexation rate of Hqn with zinc(II) was three times faster than that of Hocqn at equivalent conditions. A digital simulation taking into account the interfacial fo...
H.Watarai：“Ni(II) 与 2-(5-bromo-2-pyridylazo)-5-diethaminophen 萃取动力学的界面机制以及配体界面反应性的分子动力学模拟” Bull.Chem.Soc.Jpn
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