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hydrolysis rates
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  水解速率
     Iodosulfuron-sodium hydrolysis rates were affected somewhat by temperature. At pH 4, hydrolysis rate increased with increasing temperature, with half-lives of 23.9, 15.5, and 12.3 d at 15, 25, and 35℃, respectively.
     温度对碘甲磺隆钠盐的水解速率有一定的影响,当pH为4时,其水解速率随温度的升高而加快,当温度为15℃、25℃、35℃时,半衰期分别为23.9、15.5、12.3d;
短句来源
     Differences of Urea Hydrolysis Rates underSeveral Determination Conditions
     几种测定条件下土壤尿素水解速率的差异
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     The hydrolysis rates of the four pesticides all increased with temperature.
     当温度升至50℃时,四种农药的水解速率均有不同程度的增加,增幅为原来的2.0—10.8倍;
短句来源
     Iodosulfuron- sodium hydrolysis rates were similar in distilled and river water.
     碘甲磺隆钠盐在蒸馏水中的水解速率与在河水中的水解速率相似。
短句来源
     The hydrolysis rates are higher in W/O microemulsion media and decrease with the addition of water, they increase with that in B. C.
     水解速率在油包水(W/O)微乳液结构介质中较大,且随水含量增加而减小,双连续(B.C.) 微乳液结构中随水含量增加而变大;
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  水解率
     The hydrolysis rates of sulbactamcefoperazone (1∶1) were near to that of ceftazidime, lower than that of clavulanateamoxicillin (1∶5) and tazobactampiperacillin (1∶8).
     β-内酰胺酶对头孢哌酮/舒巴坦(1∶1)的水解率与头孢他啶相似,但低于对阿莫西林/克拉维酸(1∶5)和哌啦西林/三唑巴坦(1∶8)的水解率
短句来源
     Our results found that it was stable to TEM 1, TEM 2, OXA 1, OXA 2, OXA 3, SHV 1, K1, D31 standard β lactamases as well as other two cephalosporinases. The relative hydrolysis rates were less than 2% of all the β lactamases mentioned above.
     结果表明头孢布烯具有很强的β-内酰胺酶稳定性,它不被TEM-1、TEM-2、OXA-1、OXA-2、OXA-3、SHV-1、K1、D31 等酶水解,其相对水解率(RelativeHydrolysisRate,RHR)< 2% 。
短句来源
     The hydrolysis rates of the raw corn flour hydrolyzed by the crude extracts after 24 hours was 88.57% and 86.88% respectively;
     这两株菌粗酶液的酶学特性进行了初步探讨,它们水解生玉米粉24h后的水解率分别为88.57%、86.88%;
短句来源
     The hydrolysis rates of fatty acid ester catalyzed by minerals at low temperature are ranging from 90% to 50%,mostly in 22%~34%.
     脂肪酸酯低温矿物催化水解的水解率范围在 9%~ 5 0 % ,大多数集中在 2 2 %~ 34%范围
短句来源
     Results When the concentration of the antibiotics was 0. lmmol/L, the average hydrolysis rates(HR) of CPT and CPZ by eightβ-lactamases were 75.1% and 49.1%, respectively. After adding the same concentration of SBT, the HR dropped to 8. 2 % (P<0.01).
     结果SBT显著降低CPZ的MIC ,所试细菌的 β 内酰胺酶对头孢噻吩和头孢哌酮的平均水解率分别为 75 .1%和 4 9.1% ,加用等浓度SBT后 ,酶对头孢哌酮的平均水解率降至 8.2 % (P <0 .0 5 )。
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  水解效率
     Objective To study the effect of collagenase injection(CI) on the activity of phospholipase A_2 and to compare the hydrolysis rates of three types of collagens.
     目的研究注射用胶原酶对磷脂酶A2活性的影响及对3种类型胶原蛋白的水解效率
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  “hydrolysis rates”译为未确定词的双语例句
     The hydrolysis rates are 14.8%, 36.1%, 82.0% when ultrasound is combined with hot water, 1%dilute sulfuric acid or 1%dilute alkali. They are higher by 54.5%, 29.4%, 23.1% compared to the rates (9.58%, 29.4%, 66.6%) without ultrasound, respectively.
     在超声波辅助热水、1%稀酸、1%稀碱预处理中,其酶解得率分别为14.8%、36.1%、82.0%,比未加超声波辅助的热水、稀酸、稀碱预处理的酶解得率9.58%、29.4%、66.6%分别提高了54.5%、29.4%、23.1%。
短句来源
     The transition points of the hydrolysis rates occur at the points of the structural transition from W/O to B. C.
     而水解反应速率转变点发生在微乳液结构由W/O到B.C.
短句来源
     The release studies were performed in pH 1.1, 7.4 and 10.0 buffer solutions, the hydrolysis rates of PEG10000-Met is the slowest of the three macromolecular prodrugs in the same condition.
     并研究了它们在pH 1.1、7.4、10.0缓冲溶液中的释药情况。
短句来源
     Stability and inhibitory activity of aztreonam(AZ) and imipenem(IMP) to 11 stamdard β-lactamases were studied, using peniCillins and cephalosporins as control. The activities of the β-lactamases using cephaloridine(CER) as substrate and the relative hydrolysis rates(RHR) of β-lactams by the β-lactamases was determined spectrophotometrically.
     用紫外分光光度法.以其它青霉素类、头孢菌素类抗生素为对照.研究氨曲南(Aztreonam.AZ)和亚胺培南(Imipenem.IMP)对11种标准β-内酰胺酶的稳定性及抑酶作用。
短句来源
     The β-lactamase stability testshowed that the hydrolysis rates of 8 tested β-lactam antibiotics with the β-lactamasesencoded by the 4 plasmids were different; and their hydrolysis spectrum of cefoperazone werenot similar either.
     酶稳定性实验显示大肠杆茵HX88108的4个质粒所编码的β-内酰胺酶对8种β-内酰胺类抗生素的水解享及对头孢哌酮的水解扫描光谱各不相同;
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  hydrolysis rates
A difference in the alkaline hydrolysis rates of the triesters of phosphoric acid is determined by the sum of the induction effects of the alcohol radicals; the effect of the cleaved and remaining groups is equivalent.
      
The hydrolysis rates of these five esters ranged from almost immediate to negligible.
      
Thus the dependence of hydrolysis rates on the water mobility was influenced by the hydrolysis mechanism.
      
Effect of Water Mobility on Drug Hydrolysis Rates in Gelatin Gels
      
In both mice skin preparations maximum hydrolysis rates were obtained with the valeryl ester followed by butryl, isobutyryl, propionyl and pivaloyl derivatives.
      
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A series of O,O-dialkyl S-carboalkoxyalkyl phosphorodithioates were examined forhydrolysis rates by mouse liver enzyme, anticholinesterase activities to house fly cholines-terase and toxicities to house flies (Musca domestica vicina Macq.) and mice. Linear re-lationships between the logarithm of hydrolysis rate, and also pI_(50), and inductive effectindex (I) of the alkyl radical in the carboalkoxy group were observed. A rough linearrelationship between log LD_(50) (house fly) and pI_(50) was also...

A series of O,O-dialkyl S-carboalkoxyalkyl phosphorodithioates were examined forhydrolysis rates by mouse liver enzyme, anticholinesterase activities to house fly cholines-terase and toxicities to house flies (Musca domestica vicina Macq.) and mice. Linear re-lationships between the logarithm of hydrolysis rate, and also pI_(50), and inductive effectindex (I) of the alkyl radical in the carboalkoxy group were observed. A rough linearrelationship between log LD_(50) (house fly) and pI_(50) was also observed with some devia-tions which are presumably due to the fact that several compounds are more easily ac-tivated in vivo. There is no correlation between mouse liver hydrolysis rate and toxicityto mice, and the evidence indicates that carboxyesterase hydrolysis is not the only factorof the detoxification of these compounds, in which phosphotase hydrolysis may be in-volved. Most of compounds listed in table 3 showed selective toxicity. Among these,AP_4 is the best with a selective ratio (LD_(50) mouse/LD_(50) house fly) of 221.

本文研究了一系列阿赛硫磷(Acethion)类化合物对家蝇头部胆碱酯酶的抑制作用、被鼠肝羧酸酯酶的水解作用以及对家蝇(Musca domestica vicina Macq.)和小白鼠的毒性。化合物的羧酸酯酶水解速度(CO_2微升)的对数值和抗胆碱酯酶活性的负对数(pI_(50))与烷基诱导效应指数(I)之间都存在直线关系。化合物对家蝇毒性(LD_(50))的对数值与抗胆碱酯酶活性的负对数(pI_(50))之间大致有直线关系,但有些化合物距离直线较远,这可能由于在体内易于进行活化作用使毒性增高。化合物对小白鼠毒性(LD_(50))的对数值与羧酸酯酶水解速度(CO_2微升)对数值之间,没有直线关系。说明羧酸酯酶的水解作用不是此类化合物解毒作用的唯一因素,可能包括磷酸酶的水解作用。所合成的化合物大部分部有选择毒性,其中AP_d的选择比率(LD_(50))小白鼠/LD_(50)家蝇)最高,为221。

In our continued pursuit of a better understanding as well as possible applications of the physical and chemical behavior of amylose in the Me_2SO-H_2O binary system, the effects of amylose (A) on the hydrolysis rates of p-nitrophenyl dodecanoate have been investigated in these buffered mixed solvents of different compositions. The solvent composition is designated by Φ_(Me_2SO), the volume fraction of Me_2SO in the binary mixture.

在二甲亚砜(Me_2SO)-水缓冲液的混合溶剂中,糖淀粉(A)能催化对硝基苯基十二酸酯的水解.我们观察到溶剂组成对糖淀粉的催化或抑制作用有明显的影响,即糖淀粉的催化效率k_(obs)/k_(un)随Me_2SO的体积分数(Φ_(Me_So))的增加而单调下降,并经历了由催化至抑制的过程.转折区在(Φ_(Me_So))=0.70,正好对应于糖淀粉与长链受物相互作用方式自螺旋包结络合物至超螺旋络合物的变化,再次证明了形成螺旋包结络合物对发挥催化效率的重要性.从磷酸缓冲液内的实验结果可以看出,即使在螺旋包结络合的情况下,除了OH~-和烷氧基离子外,缓冲离子亦作为亲核体对酯水解有所贡献,与硼酸缓冲液体系相比,在磷酸缓冲体系中k_(obs)-糖淀粉浓度曲线在高浓度区下降更多,这表明磷酸根离子具有更强的与糖上羟基配合的能力,从而抑制水解进行.从修正的Lineweaver-Burk图求出抑制络合物解离常数K’_d=0.046mM,小于硼酸缓冲液体系内的K’_d(0.14mM).

Silk is dyed with nine reactive dyes containing various reactive systems and having different reactive groups. After the dyeings being thoroughly extracted to remove all noncovalently bounded dyes,they are treated with buffer solutions in pH range from 1.89-10.65 at 70℃. Due to the adhesion of the hydrolyzed dyes on silk,thus each sample is again extracted after the 24-hour buffer solution hydrolysis. The hydrolyzed dyes and fabrics are determined by chromatography, spectrophoto- metry and weight...

Silk is dyed with nine reactive dyes containing various reactive systems and having different reactive groups. After the dyeings being thoroughly extracted to remove all noncovalently bounded dyes,they are treated with buffer solutions in pH range from 1.89-10.65 at 70℃. Due to the adhesion of the hydrolyzed dyes on silk,thus each sample is again extracted after the 24-hour buffer solution hydrolysis. The hydrolyzed dyes and fabrics are determined by chromatography, spectrophoto- metry and weight method. The hydrolysis rate of the dye-fiber bonds is estimated by spectrophotometric measurements of the buffer solution with the hydrolyzed dyes. The results show that the bonds of silk-dye containing two reactive groups have very good resistance to hydrolyse.

丝用九个含有不同活性基团和活性基个数的活性染料染色,着色丝上非共价结合的染料被萃取净后,用pH值从1.89至10.65五个不同缓冲溶液于70℃进行水解,吸附在丝上的水解染料再次被萃取净。水解的染料用光谱法、色谱法和重量法予以证明,水解速度用光谱法加以测定。结果表明,含双活性基团的活性染料能与两肽链交链,并且具有较高的键的稳定性.

 
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