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In order to remove the phosphorus that causes eutrophication, a new type of dephosphorization absorbent was prepared in the paper. The adsorption of phosphate was studied, and results showed that the adsorption would finished quickly in a short time and in acid solution, the adsorption capacity was 34 mg/g.

针对水体富营养化的磷,采用吸附法进行处理,制备出一种新型的除磷吸附剂,对水中磷酸盐的吸附性能进行了研究,结果表明,该吸附剂对磷酸盐的吸附速率很高,在酸性条件下,其最大吸附容量为34mg/g。

In this paper we combined three chromatographic separation and purification technique such as affinity chromatography, ion exchanger chromatography and hydrophobic interaction chromatography to develope a new technology of stimutaneous extraction of three enzyme from pancreatin. We optimized the technology by studying the methods of purification and assured the technology as: The crude extraction from the dissolution of Pancreatin is directly absorbed on the DEAE gelose fast flow columnEquilibrating buffer is 0.01mol/L NaoAc-HoAc buffer(pH4.5; eluting buffer is 0.2~0.35mol/LNaCl in 0.01mol/LNaoAc-HoAc buffer (pH4.5), and then be eluted by two steps to acquire the peak of kallikrein.The solution which can"t be adsorbed by DEAE gelose fast flow column is adsorbed on affinity chromatographic column Equilibrating buffer is 0.01mol/LTris-HCl buffer(pH7.5, eluting buffer is 0.5mol/LNaCl in 0.01mol/Ltris-HCl buffer(pH7.5)and then be eluted by one step to acquire the peak of trypsin.The solution which can"t be adsorbed by is pretreated with 30%~80%(NH_4)_2SO_4 fractional precipitation, the deposition of the precipitation is dissolved to beabsorbed on phenyl gelose fast flow columnhydrophobic interaction chromatography condition is Equilibrating buffer is lmol/L(NH_4_2SO_4 in 0.01mol/LNaoAc-HoAc buffer(pH4.5), eluting buffer is 0~0.6mol/L(NH_4)_2SO_4 in 0.01mol/LNaoAc-HoAc buffer (pH4.5) and then be eluted by two steps to acquire the peak of chymotrypsin.

本研究考察了各种纯化方法,将离子交换层析、亲和层析和疏水层析三种分离纯化法相结合,建立了激肽释放酶、胰蛋白酶和糜蛋白酶三酶的联产工艺:胰酶用pH4.5醋酸缓冲溶液提取后,粗提液直接上DEAE-琼脂糖快胶柱吸附平衡缓冲液:0.01mol/LNaoAc-HoAc缓冲液(pH4.5,洗脱缓冲液:0.01mol/LNaoAc-HoAc缓冲液(pH4.5)含0.2~0.35mol/LNaCl分两步洗脱,收集激肽释放酶的洗脱峰;DEAE-琼脂糖快胶的未吸附液上亲和层析柱分批吸附平衡缓冲液:0.01mol/LTris-HCl缓冲液(pH7.5,洗脱液:0.5mol/LNaCl溶液,一次洗脱,收集胰蛋白酶洗脱峰;最后,亲和层析未吸附液用30%~80%硫酸铵分级盐析处理,沉淀溶解后用上苯基—琼脂糖快胶吸附平衡缓冲液:0.01mol/LNaAc-HAc缓冲液(pH4.5含1mol/L(NH_4)_2SO_4,洗脱缓冲液:0.01mol/LNaAc-HAc缓冲液(pH4.5)含0~0.6mol/L(NH_4)_2SO_4,分两步洗脱,收集糜蛋白酶的洗脱峰。

According to the analysis of density of state and charges density, we found that ozone molecular was chemically adsorbed on the bridge site of S1 as ozonide, and ozone molecule decomposed into one adsorbed surface oxygen atom and one free oxygen molecule.

态密度和电荷密度分析结果进一步证实了O3分子在S1上吸附是桥位化学吸附,形成表面臭氧化物,在S2上吸附分解为1个被吸附的表面氧原子和1个自由氧分子。

The function mechanism among the minerals and floatation drugs had been studied with the way of IR and academic calculation, which pointed out that absorption of G-4 on the surface of phosphorite belonged to physical and chemical types, but the chemical one was in the highest flight. Absorption of amine collector named GE-609 on the surface of quartz belonged to electrostatic and physical type. Distilled water could hardly wash the GE-609 down from the surface of quartz. Leading component of S-721 was the concentrated compound of naphthol sulfonic acid and formaldehyde. The compound had a stronger affinity to the Mg~(2+) on surface of dolomite than the Ca2+ on surface of phosphorite, which is the essential reason in the separation of phosphorite and dolomite. The leading components of soluble glass in function were HSiO3 hydronium and F^SiC^ colloid granule.

通过红外光谱测定以及理论计算的方法研究了选矿药剂与矿物间的作用机理,研究表明:脂肪酸捕收剂G-4对胶磷矿的捕收作用是以化学吸附为主、化学吸附与物理吸附共同作用的结果;胺类阳离子捕收剂GE-609在石英表面的吸附属于静电物理吸附,但很难用水洗的方法使GE-609从石英表面脱附;S-721主要成分为萘酚磺酸与甲醛的缩合物,萘酚磺酸与甲醛的缩合物对白云石表面Mg~(2+)的吸附明显强于对胶磷矿表面Ca~(2+)的吸附,这是胶磷矿与白云石分离的根本原因;水玻璃溶液中对石英起抑制作用的主要组分是HSiO_3~-和H_2SiO_3胶粒,水玻璃除对石英起抑制作用外,对矿浆还具有一定的分散作用。

It can improve the conflagrant properies of tobacco when cobalt joined, and the min-nim selenium can reduce the deleterious substance in the cigcarette haze, and reduce the harm to health,therefore in this paper we have researched the adsorptive properities of cobalt on tobacco and some factors which affect the adsorption of selenium on tobacco by the theory of liquid - solid adsorption . We have discussed the influences of the adsorbate concentration. temperature, pH and certain concomitant substance, and have determined adsorption isothermal under the different temperature.

微量元素钴的加入能改善烟丝的燃烧性能;微量硒的存在能降低烟气中有害物质,减轻吸烟对人体健康的危害,因此本论文利用固—液吸附理论研究了钴在烟草上的吸附性能以及硒在烟草上吸附的一些影响因素,探讨了吸附质浓度、温度、pH及某些共存物质对吸附的影响,测定了不同温度下的吸附等温线。

Gel-type cross-linked polystyrene-isocyanuric acid resin has been obtained by reaction of chloromethylated polystyrene with isocyanuric acid under the existence of triethylamine.

由氯甲基化低交联聚苯乙烯和异氰尿酸在三乙胺作用下反应,制得了凝胶型交联聚苯乙烯-异氰尿酸树脂,测定了该树脂对苯酚和间苯二酚在不同温度下的吸附等温线,依据Clapeyron-Clausius方程从吸附等温线计算出了吸附热,从热力学的角度论证了树脂是基于氢键键合和疏水作用而吸附苯酚和间苯二酚的。

The adsorption behavior of pure CO2 on silicalite was discussed in detail through the adsorption isotherms, adsorption sites, interaction energies, and isosteric heats of adsorption.

首先基于GCMC模拟从吸附等温线,吸附热,吸附位置,相互作用能等方面详细研究了纯组分CO2在全硅沸石Silicalite上的吸附性质,并与实验结果进行了比较。

The influence of several factors on the effect of adsorbing Monascus pigment bymacroporousion adsorption resins is studied.

研究了各种因素对大孔吸附树脂吸附红白色素的影响,确定了吸附和洗脱的工艺条件,并利用回归的方法得到了吸附过程随时间变化的动力学方程。

Using density functional theory, the adsorption of cyanide on the different sites of Cu(100) surface was studied with end-on and side-on geometries.

采用密度泛函方法,以原子簇Cu14 为模拟表面,对CN自由基分子在垂直和平行Cu( 10 0 )表面不同位置的吸附情况进行了研究,结果表明:通过原子C垂直吸附在表面的顶位是其最佳吸附方式,吸附后CN键振动频率发生蓝移;而其它吸附方式中CN键振动频率均发生红移。

The new adsorbents for desulfurization of FCC gasoline, such as zeolite adsorbents, metal oxide adsorbents, active carbon, clay adsorbents and other adsorbents, and their mechanism of adsorption, modifications, desulfurized effect, regenerations, were introduced in detail, especially modified adsorbents.

论述了分子筛类吸附剂、金属氧化物类吸附剂、活性炭、黏土类吸附剂和其他一些吸附剂在吸附机理、改性、脱硫效果、再生等方面的研究进展,特别是各类吸附剂改性后对硫化物的脱除效果。

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