| 1. | The extraction condition of jasmine colorant in water 栀子色素水提取条件初探 |
| 2. | Water extraction conditions of polysaccharide from fructus corni 山茱萸多糖提取过程研究 |
| 3. | Study on the optimal extraction conditions of bioavailable hg in soil 土壤中有效态汞的最佳萃取条件研究 |
| 4. | Optimization of extraction conditions for active components in liniaotonglin capsule 正交试验法优选银翘解毒软胶囊的水煮提取工艺 |
| 5. | Studies on optimal extraction conditions of flavonoid from the flowers of edgeworthia chrysantha 结香花中黄酮类化合物提取工艺条件的研究 |
| 6. | Abstract : selcting three groups of solvents as extraction menstrual , the best solvent and the best extraction condition are determined 文摘:选用3组溶剂作为萃取剂,利用正交试验确定了萃取蕃茄红色素的最佳溶剂及条件 |
| 7. | Results the extraction conditions were optimized as follows : folium ginkgo and rhizoma chuanxiong were powdered and soaked by fifteenfold - weight 60 % alcohol , to get the highest content of flavone and ligustrazine 结果:银杏叶、川芎粉碎成粗粉,用15倍量60 %的乙醇漉条件最佳,总黄酮和川芎嗪的含量最高。 |
| 8. | Moreover , some elementary research on bse has been done , the extraction condition was discussed and the results show that bse can solve singular linear mixture problems to some extent . finally an algorithm for multi - sources blind extraction based on information theory was studied 匆此外,本文还对盲信号提取( bse )做了初步研究,对盲信号提取的条件进行了探讨,结果表明bse对解决奇异线性混合有一定效果,最后基于信息论准则研究了多源信号的提取算法。 |
| 9. | By using a zone model , simulates the behaviour of smoke temperature , height , volume fraction of co changing with time under different smoke control and extraction conditions in the station and introduces three critical conditions as a criterion for judging the effects of different smoke control and extraction methods 摘要运用区域模型模拟车站内不同防排烟工况下烟气温度、高度、 co体积分数随时间的变化规律,以三项危险临界条件是否实现作为衡量防排烟效果的判据。 |
| 10. | 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 |