最佳条件
- 与 最佳条件 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to explore the optimum condition of transition of Pb, the transfer behavior of Pb through the emulsion liquid membrane system of TBP-Span80-atoleine-kerosene was studied. The study analyzed the effect of Pb transport rate of membrane phase component, pH values in external aqueous phase, acidness in internal aqueous phase, rew and concentration of metal ions in external aqueous phase. In the case of the optimal technological conditions, the waste water of Pb, Cu and Ni was treated.
为了探求乳化液膜法迁移铅Pb(Ⅱ的最佳条件,采用磷酸三丁酯-Span80-液体石蜡-煤油乳化液膜体系研究了Pb的迁移行为,探讨了膜相组成、外水相pH、内水相酸度、乳水比、Pb起始浓度对Pb迁移率的影响,确定了最佳迁移条件,并在此条件下对含Pb、Cu和Ni废水进行了处理。
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In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.
本文通过一系列的实验,合成了两个系列的Gemini型表面活性剂,即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br,用红外光谱对其结构进行了表征,并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论,找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件:溴代烷与四甲基乙二胺的摩尔比为3.0:1.0,以乙醇作溶剂,在回流温度80℃下反应48小时;合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件:十二叔胺与1,3-二溴丙烷(1,4-二溴丁烷)摩尔比为2.2:1.0,以乙醇作溶剂,在恒温80℃下回流反应48小时。
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Using potassium persulfateas initiator and N, N′-methylenebisacrylamideas crosslinker, the graft copolymerization of acrylic acidonto modified cornhusk fiber was carried out.
将玉米秸秆进行提纯改性,采用过硫酸钾为引发剂、N,N-亚甲基双丙烯酰胺为交联剂,使其与丙烯酸接枝共聚合成农用高吸水树脂,通过试验对比最终确定最佳条件为改性玉米秸秆与丙烯酸的质量比为1∶6、丙烯酸中和度为70%、反应时间为4h、烘干温度为60°C;对最佳条件下制备的树脂进行了吸水倍率的测试;对秸秆预处理前后及接枝产物进行了红外谱图分析。
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The results from the study on the decoloring conditions of strain 3# showed that the pH range for decoloring reaction was 5~11 with 6 ~7 being the optimum, the temperature range was 10~30℃ with 30℃ being efficiency optimal. The decoloring efficiency was higher under the presence of oxygen than that lack of oxygen. Strain 3# could more strongly decolor malachite green under optimum conditions. The decoloring rate was above 50%, 70% and 90% in 4, 12 and 24 h treatment, respectively.
对3#菌株的脱色反应条件进行初步研究表明,3#细菌的脱色反应的pH为5~11,最佳范围pH 6~7;温度10~30℃,最佳温度30℃;有氧气情况下的脱色效果较缺氧情况下好;在最佳条件下该菌对孔雀绿染料的脱色作用较强,处理4、12、24 h后,色度去除率分别达到50%以上、70%以上和90%以上。
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The optimal condition for deep fry of cho- peanut bean and roasting of chocolate powder and optimum formulation for chocolate powder were studied by orthogonal experiment.
通过正交试验法,分析了巧克力花生豆制备过程中,油炸的最佳条件及巧克力粉的最佳配比和最佳烘烤条件。
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The best optimum conditions of the Agrobacterium mediated genetic transfornation were that leaves explants were immersed in the diluter 10 times Agrobacterium bacilli at OD600 of 0.6 for 8 minutes after being pre-cultured for 2 days,and then co-cultivated for 3 days.Then these explants were transferred to selected and rooting medium which contained 50 mg/L Kanamycin and 500 mg/L Carbenicillin.According to the transformation system, 54 transgenic plants were initially screened,then after PCR analysis and RT-PCR analysis 25 transgenic plants were obtained.
根癌农杆菌介导的芪合酶基因遗传转化的最佳条件为:将预培养2 d的烟草外植体,用稀释10倍的GV3101菌株菌液(OD600=0.6)浸染8 min后,共培养3 d,然后转入含卡那霉素50 mg/L和羧苄青霉素500 mg/L的筛选分化培养基上诱导分化,待抗性芽长到2~3 cm后,转入含Km 50 mg/L和Cb 500 mg/L的筛选生根培养基上进行筛选,在以上最佳遗传转化条件下,初步筛选到54株转化体,经PCR和RT-PCR检测获得25株转化烟草植株。
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The pectin enzymolysis technology,juice debittering technology,and alcohol and acetic acid fermentation were studied. The results showed the best conditions of pectase hydrolysis are:amount of pectase 0.02%,temperature 50 ℃,pH 4.4 and time 4 h.
结果表明:果胶酶水解的最佳条件为:果胶酶添加量0.02%、温度50℃、pH4.4、时间120min;果汁脱苦最佳条件为:粒状活性炭添加量0.5%、室温搅拌60min;酒精发酵的最优条件为:接种量8%、发酵温度30℃、糖度20%、pH4.4、发酵时间4d;醋酸发酵的最优条件为:接种量10%、温度34℃、酒度8%、时间4d。
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The optimum conditions for extraction was proved practicable by condition filtration and orthogonal design with supersonic wave method .The results showed that the optimum conditions for extraction to ultrasonic method is : methanol (φ=40,20ml),and 15℃ for 30 min ,this paper has determined nicotine contents that is 23.50mg/g at absorption peak (λ=262nm) by HPLC with an eluent consisting of methanol –potass Phosphate alleciate (pH=3) with the recovery and coefficient of variation are 101.52% and 0.91%.
通过超声波提取方法进行条件筛选和正交化实验,确定了烟草中尼古丁的最佳提取条件,结果表明,超声波最佳条件是:甲醇浓度40%,固液比1:20,提取时间30 分钟,超声温度15℃,用高效液相色谱方法在波长262nm 处测定尼古丁的含量,流动相组成为甲醇:磷酸二氢钾缓冲溶液=10:90,测得烟草中尼古丁的含量为23.50 mg/g,平均回收率为101.52%,相对偏差为0.91%。
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The research used microwave power 600W,and S/L is 1/10, with the suitable microwave operation condition (nitric acid concentration 9.0 mole/L, digesting time 8 minute, and digesting temperature 140 ℃), by microwave digestion lead leaching rate is 94.11%, if it used microwave power 600W,and S/L is 1/10, with the best microwave operation condition (nitric acid concentration 0.8 mole/L, digesting time 6 minute, and digesting temperature 120 ℃), by the result of study, after Microwave Digestion Treatment, the TCLP leachate of lead in reaction ash might could be reduce to 4.83 mg/L from 7.10 mg/L, and the TCLP leachate could keep under the regulation control standards.
本研究以微波功率600W、固液比1/10,在最适微波条件下(硝酸浓度9.0M、消化时间8分钟、消化温度140℃),铅的微波消化溶出率为94.11%。在微波功率600W、固液比1/10,以微波最佳条件(硝酸浓度0.8M、消化温度120℃、消化时间6分钟),经微波消化处理后,其铅TCLP 溶出量由7.10 mg/L降为4.83 mg/L,已能符合法规管制标准值。在此最佳微波条件下,对於铅TCLP 削
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From black song fungi with produce the Ruan false silk yeast fungus to constitutePass to design single factor and was hand over to experiment to make sure KB and H Ruan hybrid the fungi ferment of the best condition, test result enunciation:The KB is in N source 5%, anticipate water to compare 1:2, inoculate to compare 1:1, inoculate to measure 20%, pH to be worth 3.5, ferment time for 5 days, ferment to connect to go in to inoculate to measure to 20% H Ruans to mix the germ stub as hybrid fungi on the 3rd day the best ferment a condition, in that case, the Chinese herbal medicine residue true egg white content after ferment is 17.26%, true egg white growth rate is 82.39;The thick fiber content is 26.09% and decline the solution rate is 14.54%.
通过设计单因子以及正交试验确定了KB及H朊混合真菌发酵的最佳条件,实验结果表明:KB在N源5%、料水比1:2、接种比1:1、接种量20%、pH值3.5、发酵时间5天,发酵第3天接入接种量为20%的H朊混合菌株为混合真菌最佳发酵条件,在该条件下,经过发酵后的中药渣真蛋白含量为17.26%,真蛋白增长率为82.39;粗纤维含量为26.09%,降解率为14.54%。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。