Complexation equilibria and fluorescent properties of chelating reagents derived from ethylene glycol bis(β-aminoethylether)-N,N,N',N'-tetraacetic acid

Complexation equilibria and fluorescent properties of chelating reagents derived from ethylene glycol bis(β-aminoethylether)-N,N,N',N'-tetraacetic acid
复制标题

乙二醇双(β-氨基乙基醚)-N,N,N,N-四乙酸螯合剂的络合平衡和荧光性质

DOI:
--
复制
发表时间:
1993
期刊:
影响因子:
--
通讯作者:
G. Nakagawa
G. Nakagawa
中科院分区:
--
文献类型:
--
作者:
A. Yuchi;A. Tanaka;M. Hirai;T. Yasui;H. Wada;G. Nakagawa

文献摘要

参考文献

被引文献

相似文献

采用pH滴定法研究了二价和镧系金属离子与1,2-双(邻氨基苯氧基)乙烷-N,N,N ',N'-四乙酸(BAPTA)和2-[(2-氨基-5-甲基苯氧基)甲基]-6-甲氧基-8-氨基喹啉-N,N,N ',N'-四乙酸(quin 2)的络合平衡。在镧系元素中,BAPTA对Pr 3+显示出最大的稳定性,而quin 2对较重的具有更高的亲和力。这些趋势进行了讨论,在这些配体的刚性和供体原子。第2族和第3族元素的quin 2配合物观察到强烈的荧光。在镧系元素中,只有Sc、Y、La、Gd和Lu增强380 nm附近的荧光。
The complexation equilibria of divalent and lanthanoid metal ions with 1,2-bis(o-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA) and 2-[(2-amino-5-methylphenoxy)methyl]-6-methoxy-8-aminoquinoline-N,N,N′,N′-tetraacetic acid (quin2) were studied by pH titration. In lanthanoids, BAPTA shows a maximum stability for Pr3+, whereas quin2 has higher affinities for heavier ones. These trends are discussed in terms of the rigidity and donor atoms of these ligands. Intense fluorescence was observed for quin2 complexes of Group-2 and -3 elements. Among the lanthanoids, only Sc, Y, La, Gd, and Lu enhance the fluorescence at around 380 nm.
DOI: 10.1016/0304-4165(87)90102-4
发表时间: 1987-08-13
期刊: BIOCHIMICA ET BIOPHYSICA ACTA
影响因子: --
作者:
HARRISON, SM;BERS, DM
通讯作者: BERS, DM
DOI: 10.1016/s0021-9258(18)83165-9
发表时间: 1989-05
期刊: The Journal of biological chemistry
影响因子: --
作者:
A. Minta;J. Kao;R. Tsien
通讯作者: A. Minta;J. Kao;R. Tsien