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- optimum pH range 最佳pH值上下限
- The optimum pH was 7.0 for GL-7-ACA acylase. GL-7-ACA酰化酶反应最适pH为7.;0。
- Optimum pH on extracting Rutin from bud of Sophora japonica L. 槐花米中芦丁提取最佳pH值的实验研究。
- Each species has e ability to grow within a specific pH range, which may be broad or limited, with the most rapid growth occurring within a narrow optimum range. 每一种生物都具有在特定酸碱度范围内生长的能力，这个范围可能宽或窄，在一个窄小的最适范围内会有最快速的生长。
- The optimum pH values for the activating reaction medium for the three wood species were all within the acidic range, though there are some slight differences among them. 不同树种木纤维进行酶活化反应时介质最佳pH值均在酸性范围,但略有差别。
- The Bacillus phytase is very suitable to be used in animal feed particularly in carp feed, because its optimum pH is at the neutral range and it has the excellent thermostability. 来源于芽孢杆菌的中性植酸酶具有良好的热稳定性,适合作为消化道呈中性鲤科鱼类的饲料添加剂。
- Minimum zinc solubility is in the PH range 6. 0 to 8. 0. 土壤PH值为6.;0-8
- The bacterium could adapt to a broad pH range for PVA degradation. 该菌降解聚乙烯醇要求的pH范围较宽.
- The high-performance sorbent could adsorb more than 90% of phenoK 4-chlorophenoK 2,4-dichlorophenol and pentachlorophenol when the pH range was found to be 6.5-8.5,and the optimum mass of the sorbent was 8g/L. 在pH=6.;5-7
- Optimum pH 5.6.Adaptive range of S1 AMY which is endemic in China for temperature and pH value are wide,and activity under low and high temperature as well as strong alkali conditions is higher than that of imported species. 最适值均为pH5.;6。 我国特有的S1AMY对温度和pH适应范围宽;且在低温、高温、强酸和强碱下的活性比引进种的高。
- IEF study showed one band with pi value of 5.70. The optimum pH is 7.80 and the optimum temperature is 30?. 其等电点为5.;70，最适pH值为7
- The experiment results showed that the optimum pH value for the adsorption of abscisic acid (ABA) was 3,and the time for adsorption was 2h. 确定了从发酵液中吸附脱落酸的最佳pH为3,吸附时间2h。
- The flotation test showed that RC can inhibit the flotation of pyrrhotite at experimental pH range, but it has no effect on jamesonite. 浮选结果表明，新型有机抑制剂RC能有效抑制磁黄铁矿，对脆硫锑铅矿无明显抑制作用。
- The flotation test showed that RC can inhibit the flotation of pyrrhotite at experimental pH range,but it has no effect on jamesonite. 浮选结果表明,新型有机抑制剂RC能有效抑制磁黄铁矿,对脆硫锑铅矿无明显抑制作用。
- By addition of NaCl, EAI was increased at pH<3 but decreased at pH>3. As for ES, it was decreased by adding NaCl in the larger pH range (pH1-10). 在酸性区域(pH<3);添加NaCl提高了乳化活性;而在pH>3 的区域却降低了乳化活性。 在较广pH值范围(pH1-10)内;添加NaCl降低了乳化的稳定性。
- It was stable at pH 5.0 or 8.0. Optimum pH was 4.6 and 8.0. PPO activity in Agrocybeaegerita could be strongly inhibited by L-cys and ascorbic acid, the brown variety had two isoenzymes. 茶薪菇PPO的最适反应pH为4.;6;并且在pH5
- Zeta potential decreased from 38.6 mV to 23.7 mV over a pH range of 3.3 to 11.7 in the presence of 0.5 mmol/L CTAB and the average size of ink particles increased by 13 nm. pH对CTAB的作用效果有较大影响;当CTAB浓度为0.;5 mmol/L时;将体系pH从初始值3
- The removal of zinc and colourity was nearly 100% w hen initial concentration of Zn 2+ was 5 150 mg/L at the optimum pH val ue 9.0,the amount of modified bentonite added was 1 g/L. The present method is much better than tradit ional method,i. 当Zn2 + 离子初始质量浓度为 5 15 0mg/L时 ;最佳pH值为 9.;0;改性膨润土用量 1g/L时;锌和色度去除率高达 99
- This paper gives a new method to determine the F concentration in water solutions by means of the pH range of acidimeter. The method is simple, fast and decreases the errors. 本文给出一种用酸度计的pH档测定水溶液中F~-浓度的新方法,该法不仅简便、快速,而且减小了测量误差。
- Firstly, the enzymic characteristics of cellulase from waste molasses medium, including FP, EG, BG and CBH are determined in this thesis. The optimum pH for catalyzed reactions of FP, EG, BG and CBH are 4.8, 4.8, 4.8, 5.0, respectively. 论文研究了糖蜜酒精废液诱导下的纤维素酶酶学特性：FP，EG，BG，CBH酶的最适pH分别为4.;8，4
