亚铁氰化钛钾从模拟高放废液中去除Cs中试初步研究

本文研究了无机离子交换业铁氰化钛钾对模拟高放废液进行三柱串级的中试实验,结果表明：当模拟高放废液中Ｃｓ的浓度为１．１５ｇ／Ｌ,酸度为１．１ｍｏｌ／Ｌ,焖液流速为２．０ＢＶ／ｈｙ,交换柱穿透率为１％时,干交换剂的交换容量为０．３８ｍｍｏｌ／ｇ,９０％穿透时,交换容量可达０．７７ｍｍｏｌ／ｇ,交换后的废交换剂用０．１ｍｏｌ／Ｌ的硝酸洗涤,卸柱时树脂仍保持良好的球型,说明交换剂亚铁氰化钛钾有良好的机械稳     

含偕胺肟基纤维对铬离子吸附性能的初步研究

本文制备了一种含胺肟基鳌合纤维,研究了纤维对六价铬吸附性能的影响因素,结果表明,纤维能将六价铬还原为三价铬,吸附量与温度、时间、溶液ｐＨ值有关,在ｐＨ值为２时,纤维对铬的吸附量最大．     

碳锂化反应的研究进展

介绍了近年来碳锂化反应在分子间和分子内以及不对称反应方面的研究进展。     

磁性功能化酚醛树脂的合成及对金属离子的吸附性能

磁性功能化酚醛树脂的合成及对金属离子的吸附性能;环氧酚醛树脂;螯合;金属离子;溶胀;吸附容量;吸附动力学     

8-羟基喹啉化学修饰壳聚糖亚铁配合物的合成及结构表征

为了利用高分子壳聚糖的生物特性降低药物的毒副作用,寻找理想的高分子药物载体,增加药物的生物特性,本文以高分子壳聚糖为载体,以8-羟基喹啉对其进行共价修饰,合成了喹啉类抗疟杀菌药的高分子药物前体,为增加其活性,与亚铁配位,合成了壳聚糖-8-羟基喹啉-亚铁配合物,用元素分析、TG-DTA分析、IR光谱、UV光谱和荧光光谱等研究了配合物的性质,并优化了配合物合成条件.结果表明,CTS-HQ对Fe²⁺离子的吸附等温线符合Langmuir吸附等温线方程,在室温下,pH=4时吸附8h的饱和吸附量Q_max=86.96mg/g,K=1.474J/mg.     

Synthesis and Characterization of 2-DecyI-DTPA and Its Gd （Ⅲ） Chelate

The present paper covers the synthesis and the characterization of ligand 2-decyl-3, 6, 9-tris (car-boxymethyl)-3,6,9-triazaundecan-1,11-dioic acid, HsL, and its Gd (Ⅲ) chelate. The protonation constantsfor HsL(IgKi^H= 10. 90, 8.50, 4.55, 2.92., 2.20) and the stability constant for GdL^2- (lgKGdL^2- = 2.2.80)were determined by means of potentiometric titration. They are similar to the corresponding values of DTPAand Gd-DTPA, respectively. The results obtained show that the basicity of the ligand and the stability con-stant of its Gd (Ⅲ) chelate are not obviously altered after the introduction of a linear chain decyl group intothe terminal acetic acid residue of DTPA. The Gd(Ⅲ) chelate may be a potential contrast agent with liver-specificity for magnetic resonance imaging(MRI).     

缓蚀剂在N80钢上吸附行为研究

应用极化曲线和交流阻抗技术研究了 4种缓蚀剂在N80钢基体和碳酸亚铁膜上的吸脱附行为 .实验表明 ,对同一种缓蚀剂 ,其在N80钢光洁表面和在腐蚀产物膜上的吸附力强度不同 ,而酸性缓蚀剂和小分子缓蚀剂在N80钢光洁金属表面和碳酸亚铁膜上各表现出不同的缓蚀行为     

蛋白质在固定Zn2+金属螯合亲和色谱中的变性热力学

在15~85℃宽温度范围,研究了蛋白质在固定Zn2 金属螯合色谱系统中的热行为和变性热力学。实验结果表明,蛋白质在色谱过程都有一个固定的热转变温度:核糖核酸酶(RNase)、α-胰凝乳蛋白酶原A(α-Chy)的热转变温度约为55℃,细胞色素C(Cyt-C)和溶菌酶(Lys)约为65℃;,热转变温度的出现标志蛋白质构象发生变化;利用Van′tHoff作图测定了蛋白质在色谱系统热变性时的标准焓变ΔH°和标准熵变ΔS°,提出用标准熵变ΔS°和自由能变ΔG°判断蛋白质构象变化;利用ΔH°-ΔS°的线性关系估算了蛋白质热变性时的补偿温度,鉴定了蛋白质各变体在金属螯合色谱中保留机理的同一性,RNase、Cyt-C、Lys和α-Chy的补偿温度分别为55℃、65.8℃、65.2℃和54.8℃;根据蛋白质热变性时的补偿温度和构象变化熵变Δ(ΔS°)的大小,讨论了蛋白质在阳离子交换色谱和固定Zn的金属螯合色谱体系中的热稳定性。实验证明,在IDA裸柱引入Zn2 后蛋白质在色谱系统中的热稳定性减小,平均补偿温度从65.3℃降低到59.7℃,而构象变化熵变的绝对值大幅度升高。     

White Organic Light-Emitting Devices Based on 2-（2-Hydroxyphenyl） Benzothiazole and Its Chelate Metal Complex

We present three kinds of organic light-emitting devices (OLED) fabricated to achieve the emission of bright and pure white light. Device A, with a double-layered structure using 2-(2-hydroxyphenyl) benzothiazole (HBT) and poly (N-vinylcarbazole) (PVK) as the emitting layer (EML) and the hole transport layer (HTL) respectively, could realize the blue-green light emission. Bis-(2-(2-hydroxyphenyl) benzothiazole)zinc (Zn(BTZ)2), synthesized with zinc acetate dihydrate and HBT to form a complex, is used as main EMLs in a similar structure to fabricate devices B and C. Bright and pure white light emissions can be obtained from device C which was fabricated with a green-white emitting host Zn(BTZ)2 and red dopant 5,6,11,12-tetraphenylnaphthacene (rubrene). The maximum quantum efficiency of device C could reach 0.63%, and the corresponding brightness and CIE coordinates were 4000cd/m^2 and (x=0.341, y=0.334) at the driving voltage of 20V.     

Nonlinear Excitation in a Ferrimagnetic Zigzag Chain

We study the nonlinear excitation (solitons) in a ferrimagnetic polymer chain by using a total Hamiltonianconsisting of Su-Schrieffer-Heeger Hamiltonian and a Hubbard term. At half-rifling, the distortion of latticesforms domain wall solitons, while the spin configuration forms envelope solitons. The soliton pair is obtained ina range of the electron-electron (e-e) interaction U, which depends on the electron-phonon (e-ph) interaction.The spin solitons corresponding to the left domain wall and the right domain wall of the displacement are quitedifferent.