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Results The purification effect was satisfactory when the concentration of original solution of the extract of Cacumen Platycladi was 0.20 gmL^(-1), the loading amount was 0.375 g of Cacumen Platycladi per 1 mL of wet AB-8 resin, the adsorption velocity was 1 mLmin^(-1), the eluant was 70% alcohol being 4 times as much as the resin volume, and the elution velocity was 2 mLmin^(-1). AB-8 resin could be used for 3 times repeatedly after being reproduced by 95% of ethanol and 1 moLL^(-1) of natrium hydroxydatum. The remaining rate of the total flavonoids and quercitrin was over 70% and 95% respectively, and the remaining rate of peaks 1~3 was over 90%.

结果 AB-8型大孔吸附树脂纯化效果较好,最佳工艺条件为:上样液浓度为含生药量0.20gmL^(-1),上样量为每1mL湿树脂上样0.375g生药,吸附速率为1mLmin^(-1),洗脱液为4倍柱体积的70%乙醇,洗脱速率为2mLmin^(-1);树脂经95%乙醇和1moLL^(-1)氢氧化钠溶液再生后,可重复使用3次。

Optimization of resolution conditions and affecting factors on resolution such as solvent, the molecular ratio of racemate to resolving agent, method of reaction, concentration of racemate, crystallization temperature and crystallization time were studied.

对影响拆分的因素溶剂和底物浓度通过均匀实验进行了优化,同时对其他影响因素如底物与拆分剂投料比、反应物溶解方式、结晶时间和结晶温度等进行了考察。

More new situations are showing up as the combination of many factors, such as the superposition and connection of cities and towns, concentration of resource factors, recomposition of industrial enterprises, network of transportation information and moving of population and so on.

在当前全球经济相互依存的一体化时代,由于城镇连绵迭加、资源要素集中,产业集团重组、交通信息网络化和人群流动化加快等等因素的汇合,给城市化地区带来新的现象。

Results showed that green firm callus and rooting were obtained with treatments of NAA 0.5-3.0mg/L, in which the NAA 0.5mg/L treatment appeared the optimal rooting result of 90%. White loose callus was obtained with treatment of 2,4-D0.1-3.0 mg/L.Callus can not be induced by adding BA solely at 0.5-3.0mg/L. There appeared bud redifferentiation only when appropriate concentration of combined BA,NAA and 2,4-D were applied.

结果表明:单独加入NAA0.5~3.0mg/L可诱导出绿色致密的愈伤组织,并再生出根,其中NAA0.5mg/L处理生根率最高,达90%;单独加入2,4-D0.1-3.0mg/L可诱导出白色疏松的愈伤组织;单独使用BA0.5—3.0mg/L不能诱导出愈伤组织;BA与NAA或2,4-D只有在适当的质量浓度范围内配合使用才能分化出芽,芽分化率最高的处理为BA3.0mg/L+NAA0.5mg/L,分化率为30%。

Producted RF and CRF aerogels by process of sol-gel technics, dynamic-exchange, CO2 supercritical drying, and procedural increase in temperature carbonization methods, which have eximious capability and nanometer network structure; Systemic analysis various factors which effect gel course, such as ratio of reactants and the dosage of catalyst, and probed into the better experiments conditions(the concentration of resorcinol and formaldehyde is more than 2% and the value of R/C is between 50 and 300); During gel course , primary investigated the viscosity curve and particle size distribution of sol-solution, and analyzed the reason of catalyst dosage effects particle size of gel, and confirmed that the up-growth of gel follows the theory of " polymerize increase ".The experiment results indicated that ultrasonic with unvarying temperature disposal shortened gel time and optimized quality of gels, and the factors of ultrasonic effect gel reaction velocity were analyzed; Prepared organic aerogels using compounds of resorcin and hydroquinone substitute resorcinol reacts with formaldehyde the first time, and also optimized the proportion of resorcinol and hydroquinone (the proportion of hydroquinone in 10%~40%).

采用溶胶-凝胶工艺结合动态溶剂交换、CO2超临界流体干燥与程序升温碳化方法制备出性能优良、具有纳米网络结构的RF与CRF气凝胶;深入研究了反应物配比催化剂用量等条件对凝胶过程的影响,得到了较佳的RF凝胶制备条件(RF浓度应大于2%,R/C值取50~300);初步研究了凝胶过程中的粘度、粒径变化情况,分析了催化剂用量影响凝胶中粒子尺度的原因,在实验上印证了凝胶生长遵循"聚增长"的理论;通过引入超声波改进了RF气凝胶的制备工艺,缩短了凝胶反应时间,提高了凝胶品质,并探讨了超声波促进RF凝胶反应作用的原因;首次用对苯二酚与间苯二酚复配制备了混合有机气凝胶,优化出复配比(对苯二酚含量为10%~40%)。2。

Of the 10 investigated fungal elicitors, mycelium extract of Rhizopus japonicus was found to be the best, and at the concentration of 5 mg GE.L-1, the GKB yield of suspension cells was doubled after the cells were induced for 3 days.

从10种真菌诱导子中筛选出效果较好的日本根霉诱导子,当添加浓度为5 mg GE.L-1,诱导培养3 d时,悬浮细胞的GKB产量比对照增加约1倍。

The rootage induction and transplanting of plantlets were conducted by adding different concentrations of IAA and IBA.The results showed that the effect of IBA on rootage induction was better than that of IAA,and the lowest culture concentration of IBA was 0.4mg/L.

结果表明,大西洋组培苗壮苗后,在生根诱导培养时添加IBA的效果较好;最低生根培养浓度为0.4mg/L IBA;以东北土∶=2∶1为移栽基质,在灭菌条件下,1/2M S+0.6mg/L IBA培养基中组培苗移栽的成活率最高,可达87.61%,而1/2M S+0.4mg/L IAA的移栽成活率仅为41.23%。

In the case of low doping concentration of porphyrins and long interchain distance, the rotational motion of porphyrin molecules is the main reason of fast luminescence decay and low luminescence efficiency.

在卟啉低掺杂浓度和聚合物分子链间距离较大的情况下,卟啉侧链基团的旋转成为影响荧光寿命和发光效率的主要因素。

Methods The model of nitroglycerin migraine was made after rat treated by gastrodin for 5 days, the time points of ear rubescence and the times of scratch head were observed to take as evaluation index of pharmacodynamic action, the concentration of 5-HT, NE and DA were measured in the brain with HPLC.

天麻素预防给药5 d,于第5天给药后皮下注射硝酸甘油复制偏头痛模型,并观察其耳红、挠头次数等行为学指标,采用高效液相色谱法测定各组大鼠脑组织中5-羟色胺、去甲肾上腺素和多巴胺的含量变化。

The concentration of mammoth Manny and his wife Eliza are looking forward to the birth of baby elephant; saber-toothed tiger Diageo has been suspected that they are not becoming too soft, and has not considered suitable for tigers; to pine nuts to life in Sikelaite continues to chase a squirrel it is sinking, disobedient pine nuts, but the difference is that this focus on his experience of love; day disturbed by noisy cowardly Sid the Sloth and this time found a new expedient to survive of the total - theft of dinosaur eggs, but unfortunately, he was caught!

本集中,猛犸象曼尼和妻子艾丽正期待着小象的降生;剑齿虎迪亚格一直都在怀疑自己是不是变得太温柔了,已经不适合作老虎了;要松子不要命的松鼠斯科莱特继续追逐着它那颗不听话的松子,但不同的是,这集中他遭遇了爱情;整天聒噪不安贪生怕死的树懒希德这次又找到了一个新的生存的权宜之计——偷盗恐龙蛋,但不幸的是,他被抓了!

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