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低交换量混胺树脂的合成及其对绞股蓝皂甙的吸附性能 总被引:1,自引:1,他引:0
高交联聚苯乙烯型树脂S-008(Ⅰ)氯甲基化后,以不同比例的三甲胺/二甲胺混合胺或三甲按/二乙醇胺混合胺胺化,合成了同时含有季铵和叔氨基的混胺树脂Ⅱ-Ⅺ,研究了它们对绞股蓝皂甙的吸附性能,发现树脂的比表面和极性基团对其吸附量均有明显影响,此外,这些树脂对绞股蓝皂甙呈现出一定的吸附选择性和良好的解吸选择性。 相似文献
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AASI—2树脂对绞股蓝皂甙的吸附与洗脱性能 总被引:3,自引:0,他引:3
本文详尽地研究了AASI-2树脂对绞股蓝皂甙的静态、动态吸附与脱附性能以及影响因素,确定了AASI-2树脂最佳工作条件,并考察了基在绞股蓝皂甙生产中应用的可能性。结果表明:AASI-2树脂是一优良的绞股蓝皂甙吸附剂。 相似文献
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大孔吸附树脂对绞股蓝皂甙的吸附研究 总被引:12,自引:0,他引:12
比较了7种大孔吸附树脂对绞股蓝皂甙的吸附性能及机理,通过对吸附树脂的孔径和比表面的研究,得出AASI-2树脂是一种性能优良的吸附剂。 相似文献
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SYNTHESES AND ADSORPTION PROPERTIES OF PHENOL-FORMALDEHYDE-TYPE CHELATING RESINS BEARING THE FUNCTIONAL GROUP OF TARTARIC ACID 总被引:1,自引:0,他引:1
Several kinds of novel chelating resins bearing the functional group of tartaric acid (TTA-FQ-12, TTA-FQ-23, and TTA-FQ-34) were synthesized by reacting epoxy maleic anhydride, which was prepared through the oxidization reaction of maleic anhydride by hydrogen peroxide, with phenol-formaldehyde resin containing polyamine (FQ resins series). The effects of such factors as reaction time, reaction temperature and pH value on the loading capacity of TTA in resins were investigated. The results showed that the optimum reaction conditions are as follows: time 9-12h; temperature 90-105℃;pH value 6-10. The loading capacities of TTA can reach 0.15, 0.14, and 0.11 mmol/g^-1 when the functional group of FQ resin was -OCH2CH2NHC2H4NH2, -O(CH2CH2NH)2C2H4NH2 and -O(CH2CH2NH)3C2H4NH2), respectively. The structures of resins were characterized by FTIR spectra. The primary study on the adsorption properties of the resins for metal ions showed that there are two kinds of adsorption mechanisms i.e. ion exchange and chelate in the adsorption process. TTA-FQ resins have much higher adsorption selectivity for Pb^2 and Zn^2 than for Cu^2 and Ni^2 . These resins can probably be used for separating Pb^2 or Zn^2 in the mixture of metal ions or for treating wastewater containing heavy metal ions. 相似文献
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1.INTRODUCTION[()-227.3()]Endotoxinislipopolysaccharide(LPS)derivedfromthecellmembranesofgram-negativebacteria.Endotoxincancausefebrilereactionsinanimalswithsymptomsofhighfever,vasodilation,diarrheaandfetalshockwheninjectedeveninaverysmallamount[1].Iftheconcentrationofendotoxininpatients?bloodishighenoughitcancauseseveresepsis,whichisamajorcauseofdeathinpatientsandcontinuestohaveahighmortalitydespiteappropriatesurgery,potentantibiotic,andintensivesupportivetherapy[2~5].LipidAisthemaintox… 相似文献
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A series of modified poly (methyl methacrylate, PMMA) resins were prepared and compared their adsorption abilities to endotoxin. The results showed that adsorbents, which were grafted with tertiary amine and long spacing arms, had the best adsorption capacities and good blood compatibility, It is hopeful to be used as adsorbent in hemoperfusion for clinical clearance of endotoxin. The influence of original concentration of endotoxin on adsorption and the adsorption mechanism were also investigated. 相似文献
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大孔吸附树脂对葡萄籽原花青素的吸附研究 总被引:14,自引:0,他引:14
对8种大孔吸附树脂对葡萄籽原花青素的吸附洗脱性能进行了筛选实验,并选择其中几种树脂研究其对葡萄籽原花青素的吸附特性及机理,发现NKA树脂是比较好的吸附剂。 相似文献
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A series of porous resins (PYR) with different content of pyridyl group were prepared,and their physical structure and adsorption properties on the stevia glycosides were studied in detail.After the selective adsorption of PYR resins,the rebaudioside A could be separated from the other components of the stevia glycosides,and a new method for obtaining pure rebaudioside A is reported. 相似文献
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螯合树脂研究——ⅩⅥ.以壳聚糖为母体的含硫、氮螯合树脂的合成及其吸附性能 总被引:1,自引:0,他引:1
壳聚糖与环硫氯丙烷反应合成了一系列含S和N的交联型螫合树脂。这类树脂对贵金属离子如:金、银、钯、铂等具有优良的吸附性能。 相似文献
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螯合树脂研究——ⅩⅥ.以壳聚糖为母体的含硫、氮螯合树脂的合成及其吸附性能 总被引:13,自引:2,他引:13
壳聚糖与环硫氯丙烷反应合成了一系列含S和N的交联型螫合树脂。这类树脂对贵金属离子如:金、银、钯、铂等具有优良的吸附性能。 相似文献
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Schiff碱螯合树脂的合成及其对金属离子的吸附规律 总被引:2,自引:0,他引:2
以交联聚苯乙烯为母体的大孔螯合树脂的合成及其应用已有文献报道,我们根据光亮镀镍工艺的特定要求,合成了4种对Cu2+具有良好吸附性能的Schiff碱大孔新型螯合树脂。 相似文献