小藍 發問時間: 社會與文化語言 · 2 0 年前

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desferrioxamine(Kd=10-31 M for iron(III), Kd=10-9 M for calcium) Desferrioxamine forms complexes predominantly with ferric iron and with trivalent aluminium ions: the complex formation constants are 1031 and 1025, respectively. The affinity of desferrioxamine for divalent ions such as Fe2 , Cu2 , Zn2 , Ca2 is substantially lower (complex formation constants 1014 or below). Chelation occurs at a 1:1 molar basis, so that 1 g desferrioxamine can theoretically bind 85 mg ferric iron or 41 mg Al3

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  • Yy
    Lv 7
    2 0 年前
    最佳解答

    I am sorry that I forgot to put down the referrence.  In fact, you don't have to post the question here.  You can send me a short note through the knowledge+ by clicking the icon 寄信給他 / 她  in my profile.By the way, my expertise is not in the field of inorganic chemistry.  i am sorry that I can not be much more helpful concerning about your other questions.Stability of desferrioxamine complexesMetal-Desferrioxamine Stability Constant [M-DFO]/[M][DFO] (log K =)Fe3+ (30.7) Fe2+ (7.2) Ni2+ (10.9) Cu2+ (14.1) Zn2+(10.1) Cd2+(7.9)  Al3+(23.1)http://www.medicine.uiowa.edu/frrb/education/FreeR... M for iron(III), Kd=10-9 M for calcium) http://sickle.bwh.harvard.edu/chelators.htmlDesfer... forms complexes predominantly with ferric iron and with trivalent aluminium ions: the complex formation constants are 1031 and 1025, respectively. The affinity of desferrioxamine for divalent ions such as Fe2+, Cu2+, Zn2+, Ca2+ is substantially lower (complex formation constants 1014 or below). Chelation occurs at a 1:1 molar basis, so that 1 g desferrioxamine can theoretically bind 85 mg ferric iron or 41 mg Al3+.http://www.medsafe.govt.nz/profs/Datasheet/d/Desfe... following reference may be also useful:Tamas Kiss and Etelka Farkas, "Metal-binding Ability of Desferrioxamine B" Journal of Inclusion Phenomena and Macrocyclic Chemistry . Volume 32, Numbers 2-3, 385 - 403 (1998)Good Luck.

  • 匿名使用者
    2 0 年前

    Yy大是一個很熱心且專業的人喔....

  • 2 0 年前

    desferrioxamine(Kd=10-31 M 為iron(III), Kd=10-9 M 為鈣) Desferrioxamine 主要地形成複合體與鐵鋼和與三價鋁離子: 複雜形成常數是1031 年和1025 年, 各自地。desferrioxamine 的親合力為二價的離子譬如Fe2, Cu2, Zn2, Ca2 是極大地更低(複雜形成常數1014 年或下面) 。螯合作用發生在1:1 槽牙依據, 以便1 g desferrioxamine 可能理論上束縛85 毫克鐵鋼或41 毫克Al3

    參考資料: 自己
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