查询词典 G-clamp

Novozym 435 was used for the synthesis of vitamin A plamitate. The influences of solvent, the molar ratio of substrates, the reaction temperature and time, and the water concentration were optimized and the best result was obtained by interesterification from 0.200 g vitamin A acetate and 0.468 g palmitic acid, at 30℃, in 10 mL hexane, containing 0% of water, with 10% of lipase(mass ratio, immobilized lipase to vitamin A plamitate). In these conditions, 75% of vitamin A acetate was converted into vitamin A plamitate. The immobilized lipase was reused about 6 batches.

对催化合成维生素A棕榈酸酯反应的脂肪酶和反应介质比较，同时对影响合成维生素A棕榈酸酯反应的因素（温度、初始水含量、底物摩尔比、反应时间和酶量等）进行了探讨，优化了反应条件：在10 mL不含水分的正己烷中，0.200 g 维生素A醋酸酯和0.468 g棕榈酸在酶量为10％（指固定化酶与维生素A醋酸酯的质量比）的固定化脂肪酶催化下，在 30℃、190 r/min下反应6 h，转化率可以达到75%，固定化酶可连续使用6次以上。

METHODS: The subcutaneous adipose tissue was obtained from adult New Zealand rabbits under aseptic condition, and cultured in vitro with collagenase digestion. All cells were divided into 3 groups: in the BMP-2 group, cells were cultured with medium containing 0.1 g/L vitamin C, 10 mmol/Lβ-sodium glycerophosphate and 10μg/L BMP-2 for 10 minutes, followed by 4-14 days inoculation with density of 18×104 cells per pore. In the BMP-7 group, cells were cultured with BMP-7 with the same methods as BMP-2 group. The cells were cultured with simple culture medium in the control group.

无菌切取成年新西兰大白兔皮下脂肪，胶原酶消化法体外分离培养脂肪干细胞，分为3组：骨形成蛋白2组加入含0.1 g/L维生素C、10 mmol/L β-甘油磷酸钠、10 μg/L骨形成蛋白2的诱导培养基培育15 min，然后按18×104个细胞/孔接种，再培育4~14 d；骨形成蛋白7组培养方法基本相同，仅将骨形成蛋白2更换为骨形成蛋白7；对照组同法加入单纯培养基进行培育。

Tea which composed of fructus jujubea, black bean and Jew's ear. The antioxidative study showed dose dependence of C.Q. tea concentration with scavenging effect of 2, 2-diphenyl-1-picrylhydrazyl free radicals and the protective effect of liposomes from ferric chloride. At the concentration of 78 μg/mL, C.Q. tea acted similar scavenging effect as 0.1 μg/mL Vitamin C. The DPPH scavenging activity of C.Q.

在抗氧化实验方面，釆坤茶清除取2，2-diphenyl-1-Picrylhydrazyl自由基的能力，与保护御脂粒不被三氯化铁氧化的能力随采坤茶浓度的上升而增加，在浓度为78 μg/mL时，清除DPPH的能力可达到与0.1 μg/mL的Vitamin C相近，且采坤茶的清除DPPH能力比红枣、黑大豆或黑木耳其中任一种药物单独使用时都高。

The linear range of concentration in molecularly imprinted monolithic column extraction is from 0.03 to 0.5μg/mL, correlation coefficients are up to 0.995, detection limit are 0.6-3.1 ng/mL and enrichments is 12-65 fold.

以毛细管电泳技术探讨对羟基苯甲酸酯类的最佳条件能有效分离六种对羟基苯甲酸酯类，再加上分子印模整体管柱具有选择性与富集率，其线性浓度范围为0.03-0.5 μg/mL，线性相关系数皆有0.995以上，侦侧极限介於0.6-3.1 ng/mL之间，富集率为12-65倍。在市售化妆水的分析添加标准品高浓度(0.1μg/mL)和低浓度(0.03μg/mL)，回收率介於80-120%之间。

Results The consumption volume of meat and egg in the group of hypercholesterolaemia was 146.2 g/d and 26.3 g/d,respectively,both were 1.3 times of those in the TC normal group.

结果 中老年人群高TC血症组的肉类、蛋类摄入量分别为146.2 g/d和26.3 g/d，均为TC正常组的1.3倍。

Optimizations were performed at the B3LYP level using a combined basis set of LanL2DZ＋6-31＋G(d,p with single-point energy evaluations using the B3LYP/6-31＋＋G(3df,2pd) approach in vacuo and in aqueous solution.

结构优化采用B3LYP方法和一个混合基组Lanl2dz+6-31+G(d，p。在优化结构基础上，用B3LYP/6-31++G(3df，2pd)方法计算了真空和水溶液中的单点能。

METHODS:① Model group: The rats were made into models of Parkinson disease with damaged corpus striatum by injecting 6-hydroxydopamine (6-OHDA, 12 μg), which was dissolved in 5 μL normal saline containing 2 g/L ascorbic acid, slowly into caudal putamen.

①模型组：将6-羟基多巴(12 μg溶于5μL含2 g/L抗坏血酸的生理盐水中)缓慢注入尾壳核，建立纹状体毁损帕金森病大鼠模型，不干预。

From 100 g corn silk, 4.55 g polysaccharide can be extracted according to the above conditions, and the content of neutral sugar was 41.33%.

在此条件下，100 g玉米须可提取多糖4.55 g，多糖的中性糖含量为41.33%。

The black carbon that isolated by density fractionation is from Hsienshi of Changhua county. The surface area is 14 m2/g , and the content of carbon is 17%. Surface area of the black carbon that produced by burned straw is 78 m2/g and the content of carbon is 14%.

从彰化线西土中，使用比重法分离出的黑炭比表面积为14 m2/g，碳元素含量为17%，自行燃烧稻草所产生的黑炭，其比表面积为78 m2/g，碳元素含量为14%，其比表面积差异的原因在於黑炭是否有经过长期在环境中驯化。

In letter notation the black notes are found between C and D, D and E, F and G, G and A, and A and B.

在字谱上，黑音符见于C和 D， D 和E， F 和 G， G 和A， A 和 B之间。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。