Results 1 to 10 of about 944,952 (137)
Synthesis and Characterization of ferrous glycinate monohydrate(一水合甘氨酸亚铁螯合物的合成及其表征)
以甘氨酸(Gly)与碳酸亚铁为原料合成了阴离子干扰少、纯度较高的甘氨酸亚铁螯合物.以反应体系的pH值为5.5~6.0、抗氧化剂用量为甘氨酸质量的10%、配位比(Gly/Fe)为2:1、反应温度为80 ℃的优化条件,得到了产率为87.21%、螯合率为86.95%的甘氨酸亚铁螯合物,产物经纯化处理后,测定了它的红外光谱和差热分析,考察了它的摩尔电导率和稳定常数(K),判断甘氨酸亚铁是带一个结晶水的反式结构螯合物.
YULu(俞露) +4 more
doaj +2 more sources
放射性药物在肿瘤诊疗领域发挥着日益重要的作用,其核心之一在于螯合剂将放射性核素与靶向分子高效、稳定地结合,并在体内具有高稳定性及良好的药代动力学特性。本文系统综述了经典及新型放射性金属核素的螯合剂标记化学的研究进展,重点探讨了68Ga、177Lu、90Y、225Ac等关键核素的适用螯合剂、标记策略及在生物体内的应用性能。通过分析放射性核素-螯合剂复合物热力学稳定性、标记条件(pH、温度、时间)及体内动力学惰性,揭示了螯合剂结构对放射性药物靶向性、稳定性和疗效的影响 ...
韦 丽雅 +4 more
doaj +2 more sources
Effect of Ultrasonic Treatment on Structure and Antioxidant Activity of Channa argus Short Peptide-Zinc(超声波对乌鳢短肽-锌结构及抗氧化性的影响) [PDF]
In order to shorten the reaction time and improve the stability of Channa argus short peptide-zinc (CASP-Zn), the ultrasonic technology was employed to analyze the effects of different time (0,5, 10,5, 30,5, 60,5, 90,0min) and different ultrasonic power (
WANG Jingyu(汪婧瑜) +7 more
doaj +1 more source
Amin al-Khouli is the pioneer of Balaghah renewal in modern era. Balaghah renewal that is called Fann al-Qaul (Art of Speaking) appeared in a period close to the appearance period of stylistic study in Europe. The purpose of this research is to reveal the connection between Amin al-KhouliÔÇÖs ideas about Balaghah renewal in his book Fann al-Qaul and ...
openaire +1 more source
Synthesis and characterization of zinc glycinate monohydrate(一水合甘氨酸锌螯合物的合成及其表征)
简化了甘氨酸锌螯合物的合成,以甘氨酸和碱式碳酸锌为原料,按摩尔比为2 : 1的比例在水相中合成,90~95 ℃间反应6 h,得到了产率为94.6%的水合甘氨酸锌螯合物.产品经纯化处理后用元素分析、红外光谱、紫外光谱、热重分析、粉末衍射等一系列方法进行表征.结果表明该螯合物是带一个结晶水的分子化合物,摩尔电导率为20.1 Scm2 • mol-1,稳定常数为2.29×105.另外用凝胶色谱法测定了该螯合物的螯合率,得螯合率为100%±1%.
GUANHai-yue(管海跃) +2 more
doaj +1 more source
Overview of current chelation practices
Deferoxamine (DFO) is reference standard therapy for transfusional iron overload since the 1980s. Although it is a highly effective iron chelator, the compliance problem to subcutaneous administration of DFO remains as the major problem.
Y. Aydinok
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Septika Rudiamon +2 more
openaire +2 more sources
将具有螯合功能的黄原酸基和酰胺基接枝到交联淀粉分子结构中,制备了高分子重金属螯合絮凝剂ISXA。螯合絮凝实验结果表明,单独投加ISXA能够有效螯合水中游离态与络合态重金属离子。在处理含浊重金属水样时,浊度得到了明显的去除,同时提升了重金属的去除率。ISXA对重金属离子的螯合表现出明显的选择性,优先顺序为:Cu2+ > Pb2+ > Cd2+ > Cu-EDTA。同时对ISXA的实用性和经济性进行了评价。
刘世念 +4 more
doaj +2 more sources
ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source

