ランタニドとアデノシン5'-三リン酸との錯体の安定度定数
1993 年 1993 巻 5 号 p. 468-470
詳細
1993 年 1993 巻 5 号 p. 468-470
The stability constants of lanthanide (M)-ATP (M=Tb, Dy, Er, Tm, Yb) complexes have been determined by a competitive spectrophotometry. The indicator ligand, 5-Br-PAPS (L), as well as its metal complexes, ML, having intense color with sufficient separate absorption peaks permits the analysis of complexation between metal and ATP (A). The stability constants are found to decrease with increasing atomic number: log KmA=5.76 (Tb), 5.57 (Dy), 5.38 (Er), 5.28 (Tm), 5.17 (Yb).
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