查询词典 immobilized

Aiming at nitrogen and phosphorus removal in bioremediation of eutrophicated water body and deep treatment of sewage, Oscillatoria, Spirogyra, Hydrodictyon and Scenedesmus were immobilized on fibrous carrier forming immobilized algal films.

针对富营养化水体生物修复和污水深度处理氮磷的去除，将细颤藻、水绵、水网藻、栅裂藻固定在纤维填料上，形成固定化藻膜。

We also compared the plasma-treated ODT surface with that after AAc-grafting. Using similar method to immobilize collagen in wet cell system, both surfaces were capable to have collagen immobilized. Nevertheless, their immobilized quantities were significantly different. The most pronounced processes are the participation of oxygen to the plasma-treated ODT surface, the generated oxidative groups, particularly the limited amount of O=C-OH group, are likely to bind with protein molecules.

另一方面，将仅电浆处理及随之以丙烯酸接枝后的两种 ODT 表面以相同方式传送至真空湿室反应室中进行连续的蛋白质固定，经由 X 光光电子能谱分析后，发现两者仍可以固定胶原蛋白，但在定量程度上有差异，经推论为：仅电浆处理之 ODT/Au，Ag 试片受到氧的参与反应，故产生能接著蛋白质分子的氧化基团，其中包括有限量的 O=C-OH 基。

The study of immobilized lipasesThe lipase of Enterobacter aerogenes and Enterobacter agglomerans were immobilized by diatomite in this study.

各脂肪酸甲酯含量在各自线性范围内的相关系数r≥0.999、平均回收率在97.91%-100.45%，精密度高，试验标准偏差在0.28%-2.22%，重复性好。

Compared with the previous method, the improved route can provide directly a spheroid form of immobilized lipase particles of which the size can be controlled by adding non-ionic surfactants during the preparation process so as to increase the recovery rate of enzyme as well as decrease the external diffusional restriction which can diminish the enzyme activity. The improved method can also alter the hydrophobicity and microstructure of the immobilized enzyme matrix by changing the molar ratios of different alkoxyl silanes so as to enhance the enzyme activity by a"surface active effect"and eliminating the internal diffusional restriction.

与前人的制备方法相比，改进的方法可直接制得球形的固定化酶颗粒，而且颗粒的大小可以通过在制备过程中加入非离子型表面活性剂加以控制，从而可以提高固定化过程的酶活回收率和减小外扩散效应对酶的表观催化活力的影响；改进的方法还可以通过改变原料硅氧烷的种类及配比来改变最终制得的固定化载体的疏水性质及微观结构，从而通过对脂肪酶的&界面活化&作用和减小内扩散效应提高固定化脂肪酶的表观酯化活力。

(1)PAL is better entrapped by PAG with a T∶C ratio of 8∶30.(2)PAL immobilized by glutaric dialdehyde on Bio-Gel P-300 is better than by CDC.(3)The best one is the dehydration and redehydration method.(4)Immobilized and permeated PAL active yeast cells are resistant to trypsin digestion and retain its PAL activity.

(1)固定化酶活性采用T∶C比为8∶30明显高于8∶19；(2)以戊二醛将PAL固定于Bio-GelP300优于用DCD固定化的酶；(3)质脂体包被中以脱水再加水法对酶活性影响较少，脂类组成以磷脂酰胆碱：胆固醇：磷脂酰丝氨酸比值7∶2∶1最好；(4)固定化PAL活性酵母细胞能较好地抵抗人工肠液中胰蛋白酶的水解作用，亦能明显降低苯丙氨酸的浓度。

The result of immobilization showed that hydrophile membranes were more advantageous than hydrophobe ones to act as immobilization carrier. Crosslinking organophosphorus hydrolase by glutaraldehyde on polyethersulfone membrane is a simple and practical immobilization method. An appropriate amount of bovine serum albumin and crosslinker is necessary to get a good result of immobilization. In the biodegradation of methyl-parathion through enzyme membrane reactor, the effect of immobilized enzyme amount, flow rate of peristaltic pump, pH of the feed, and the methyl-parathion concentration on biodegradation rate was studied. It was shown that the biodegradation rate increased with immobilized enzyme amount and substrate concentration. Biodegradation rate didn't increase when the folw rate of the peristaltic pump was larger than 7 ml/min.

然后，研究固定化酶降解甲基对硫磷，从不同材料的膜载体固定有机磷水解酶的比较中，发现亲水膜比疏水膜适合作固定化酶载体；在此基础上，将有机磷水解酶固定在聚醚砜微滤膜上，并制成酶膜生物反应器，用于降解甲基对硫磷；戊二醛化学交联法固定时，酶液与10%牛血清白蛋白溶液的比例在3：1~2：1，与交联剂的比例在7：2~7：4范围内，固定化效果较好，并发现牛血清白蛋白和膜载体有降低酶活损失的作用；将固定化的酶膜装于酶膜反应器降解甲基对硫磷，实验结果表明：反应器的降解速率与固定化酶量呈正比，也随底物浓度的增加而加快，当流速低时，降解速率随流速增大而加快，到7ml/min以上时，降解速率不随流速脑黾佣洌到獾淖畹团ǘ任？

These results indicated that palmatine had one common binding site on the immobilizedβ_2-AR column,the association constant was 2.93×10~4 L/mol at pH 7.2 and 25℃,while jatrorrhizine had two bingding sites,the association constants at these two sites were 1.93×10~4 and 1.56×10~5 L/mol,respectively.And the molar ratio of weak bingding sites to strong binding sites was 93:7.Palmatine and jatrorrhizine had competed for low-affinity site in immobilizedβ_2-AR.

结果表明，盐酸巴马汀与β_2-AR只有一类结合位点，在流动相pH 7.2，温度25℃时盐酸巴马汀与β_2-AR的结合常数为2.93×10~4 L/mol；盐酸药根碱与β_2-AR有两类结合位点，在这两类结合位点上的结合常数分别为1.93×10~4和1.56x10~5L/mol，两类结合位点数的比值为93：7，且盐酸巴马汀和盐酸药根碱竞争低亲和力的结合位点。

Then, the multidentate amine immobilized on silica gel was used as ligand for CuCl in ATRA of CCl_4 with MMA and methyl trichloroacetate with St repeatly. The conversion and purity of the product were determined through the gas chromatography and ~1H NMR respectively. Finally, the multidentate amine immobilized on silica gel was used as ligand for CuCl in ATRP of St initiated by TCPP and MMA initiated by MMTCB. The number average molecular weights of the polymers were determined through GPC.

此多齿胺改性硅胶配体被分别多次重复用于四氯化碳与甲基丙烯酸甲酯，三氯乙酸甲酯与苯乙烯的ATRA反应中，通过气相色谱测定了原料的转化率随时间的变化，且通过核磁~1H NMR测定了产物的纯度，我们还进一步将此种多齿胺改性硅胶配体用于TCPP引发St的ATRP和MMTCB引发MMA的ATRP反应中，通过GPC测定所得聚合物的分子量。

Result:In immobilized and control hindlimbs, the mean ROM of the knee were 79.5°and 138.5°, respectively. The gain of ROM after myotomy in immobilized and control hindlimbs were 8.7°±0. 45°, 11.6°+0.58°, respectively. Only 14.75%of the limitation of motion in ROM were accounted for by the myotomy component.

结果：制动侧和对照侧膝关节的ROM分别为79.5°和138.5°，行肌肉切断术后其ROM分别增加了8.7°±0.45°，11.6°±0.58°，肌源性成分在关节挛缩中所占的比例仅为14.75％。

College of Life Science,Hebei University, Baoding 071002,ChinaAbstract: The activesite of immobilized penicillin G acylase can be determined according to the precipitantproduced in the reaction between phenylacetic acid and capture reagent. Moreover, thelocalization of the immobilized penicillin G with different activity is done as well.

固定化青霉素G酰化酶活性的X射线微分析—活性定位姚子华黄永章仇满德王书香张贺迎武金霞潘延云周艳芬摘要：利用苯乙酸与捕捉剂反应天生的沉淀，确定固定化青霉素G酰化酶的催化活性部位。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。