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
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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:
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
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
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:
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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:
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作者:
A. Minta;J. Kao;R. Tsien
通讯作者:
A. Minta;J. Kao;R. Tsien