n-butanol造句

• Study on the washing activation energies of sds n - butanol decane water system
  水微乳体系洗涤的研究
• Chemical reagent - n - butanol
  化学试剂正丁醇
• Food additive n - butanol
  食品添加剂.正丁醇
• N - butanol for industrial use
  工业正丁醇
• In general , n - butanol for defatted igy is a simple , rapid and efficient procedure
  总之正丁醇去脂是一种快速、简便、有效的纯化igy的方法。
• Stationary source emission . determination of nickel . dimethylglyoxime with n - butanol by spectrophotometry
  大气固定污染源.镍的测定.丁二酮肟-正丁醇萃取分光光度法
• Preparation of mesoporous silica supported so2 - 4 zro2 solid superacid catalysts and their activity on esterification of acetic acid with n - butanol
  2固体超强酸催化剂的制备及其酯化催化活性研究
• Abstract : the anti - inflammatory effect of n - butanol extract of xanthocerassorbifolia bunge ( bex ) was studied in this paper . the ear edema resulted from dimethyl benzene , paw edema induced by carrageenin , the increase of vascular permeability caused by acetic acid , the chemotaxis of wbc induced by cmc and the weight of cotton granuloma in mice and hind paw edema induced by fresh egg white in rats were inhibited significantly by ig bex daily for 7 days , respectively . the carrageenin - induced paw edema was also inhibited markedly in adrenal - ectomiced mice . no changes in weight of adrenal and the concentration of vitamin c were observed , indicating that the anti - inflammatory effect of bex was not related to pituitary - adrenal system
  文摘:文冠木正丁醇提取物对二甲苯致小鼠耳肿胀、蛋清致大鼠足肿胀、角叉菜胶致小鼠足肿胀、醋酸致小鼠腹腔毛细血管通透性增加、小鼠羧甲基纤维素囊中白细胞游走、小鼠棉球肉芽肿生长均有显著的抑制作用，同样剂量下，文冠木正丁醇提取物对角叉菜胶致去双侧肾上腺小鼠足肿胀仍有显著的抑制作用，且对小鼠肾上腺重量及肾上腺中维生素c的含量没有明显影响。
• In order to study the influence factors of aoa of rose flowers , the effects of drying and extraction methods on the aoa of rose flowers were investigated . the results indicated that drying after high - temperature short - time pretreatment was rather effective to maintain their aoa ; the aoa of water extracts was stronger when the temperature was raised from 25 to 100 ; by using orthogonal test , the optimum extraction conditions of rose flowers were : solvent - 75 % ethanol ; ratio of material and solven - 1 : 10 ; extraction times - three times with 24 h at one time , at the room temperature . the extracts obtained by 75 % ethanol were fractionatedly extracted with petroleum , diethyl ether , ethyl acetate and n - butanol in turn , and the various fractions " aoa were analyzed
  为了探讨玫瑰花抗氧化活性的影响因子，比较了不同干燥方法、提取方法对其抗氧化活性的影响，发现：经短时高温处理后再进行干燥有利于较好地保持玫瑰花的抗氧化活性；以水作溶剂提取时， 25 100范围内水提液的抗氧化活性随着温度的升高而增强；通过正交实验筛选得到常温下玫瑰花抗氧化活性物质的最佳提取方法为： 75乙醇为溶剂，液料比1 ： 10 ，提取3次，每次24h ； 75乙醇提取物依次用石油醚、乙醚、乙酸乙酯、正丁醇等有机溶剂进行两相分部萃取，发现玫瑰花的抗氧化活性物质主要存在于乙酸乙酯部，说明玫瑰花抗氧化活性主要成分可能是单宁类、黄酮苷类和原花色素类化合物； 4
• In this study , n - bulanol for defatted igy was superior to water dilution ( wd ) . after igy was defatted wilh n - butanol , further purification of igy wilh sodium sulphate and ammonium sulphate sailing out were compared . as a result , the salting out procedure of ammonium sulphale was superior to sodium sulphate
  蛋黄正丁醇去脂后应用饱和硫酸铵和饱和硫酸钠两种不同盐析法纯化igy进行比较，饱和硫酸铵略好于饱和硫酸钠盐析法，其纯化后所获得的产量达9 . 5mgigy / ml卵黄，天津医科大学硕士学位论文纯度94
• The results showed that the n - butanol and chloroform fractions had a stronger inhibitory activity to fungal growth and the n - butanol fraction had a stronger inhibitory activity to the bacteria , so that it was surmised that alkaloids in sophora alopecuroides were the major ant - fungal component , and flavonoid glycosides and triterpene glycosides in the n - butanol fraction had both anti - bacterial and anti - fungal activities
  结果表明，正丁醇萃取部分和氯仿萃取部分对真菌生长有较强的抑制活性，正丁醇萃取部分对细菌亦有较强的抑制活性，推测苦豆子中的生物碱是主要的抗真菌成分，存在于正丁醇萃取部分的黄酮和三萜类配糖体等成分同时具有抗真菌和抗细菌活性。
• In the paper , blend composed membranes with different ratio of pva and sa have been prepared supported by hollow fiber ultrafiltration membrane of polysufone . the characterization of the blend membranes has been studied in the dehydration of methanol , isopropanol , n - butanol and tert - butanol . the influencing factors of operating temperature , feed concentration , and feed speed rate have been researched
  此外，实验中还制备聚乙烯醇与海藻酸钠聚丙烯腈平板复合膜，分别对甲醇、乙醇进行渗透汽化脱水实验，发现以聚丙烯腈为底膜的平板复合膜的分离因子比聚砜为底膜的中空纤维复合膜的高。
• The anti - microbial activities of crude ethanol extract from aerial parts of sophora alopecuroides and its petroleum ether , chloroform , n - butanol and water fractions of sophora alopecuroides to pythium aphanidermatum , fusarium oxysporum f . sp . cucumerinum , fusarium oxysporum f . sp . lycopersici , alternaria solani , pseudomonas pachrymans and xanthomonas vesicatoria were tested by mycelial radial growth test and agar - well diffusion
  本实验采用带毒平板菌丝生长法和琼脂打孔药剂扩散法测定了苦豆子地上部分乙醇粗提物及其石油醚、氯仿、正丁醇和水层的不同极性溶剂萃取物对瓜果腐霉、黄瓜枯萎病菌、番茄枯萎病菌、番茄早疫病菌、黄瓜角斑病菌和番茄疮痂病菌的抗菌活性。