丙酮

Pulp reactions were obvious during 3 days after lased. Alkaline phosphatase examination: After fixed, decalcified and selected, all experimented teeth were stained with the Ca-Co method in order to examine the alkaline phosphatase activity in dental pulp cells.

碱性磷酸酶的检测：实验牙在丙酮中固定1 d，再置入复合酸中脱钙，冰冻切片后，进行钙-钴法染色以显示牙髓细胞中碱性磷酸酶活性，根据米德冷图象分析系统测定切片的灰度值，进行统计学分析。

By changing the factors such as librating of time, temperature, frequency, the migration rules of DEP, DBP, DnOP are discussed in the thesis.

依次用2 mL甲醇、2 mL蒸馏水活化固相萃取柱，汗液流速为5 mUmin：洗脱剂为丙酮，洗脱体积为2 mL，洗脱速率为1 mUmin。

Lincomycin hydrochloride is freely soluble in water; soluble in dimethylformamide and very slightly soluble in acetone.

盐酸林可霉素是易溶于水，溶于二甲基甲酰胺，很微溶于丙酮。

According the known structure of MELs and the composition of broth, the separate and purify process of MELs was studied with silica-gel chromatography and the optimum conditions were: silica gel particle size 200 mesh, washing solution chloroform-acetone mixture (7: 3 for MEL-A, 6: 4 for MEL-B), washing rate 0.25ml/min, washing amount 400ml solvent/g MEL.

1根据已知生物表面活性剂MEL的结构特点和发酵液组成，在提取得到MEL粗制品的基础上，采用硅胶色谱分离技术，确定了MEL的最佳分离纯化条件：硅胶粒径200目，洗脱剂采用氯仿-丙酮混合溶剂，洗脱剂配比为7∶3、6∶4，洗脱速率为0.25ml/min，洗脱剂用量为400ml/gMEL。

Light oil 2,000 yuan / ton; ferrocene 20000 yuan / ton; DME 2,500 yuan / ton; Light EPA [density 0.60-0.63] 2,000 yuan / ton; sodium bicarbonate 2600 yuan / ton; Mercaptans 3,000 / ton; xylene 3,500 yuan / ton; potassium permanganate 5,000 yuan / ton; petroleum ether 3,000 yuan / ton; naphtha 2900 yuan / ton; butane 2,000 yuan / ton; acetone 4400 yuan / t; hydroquinone 15,000 yuan / ton.

轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；碳酸氢钠2600元/吨；硫醇3000元/吨；二甲苯3500元/吨；高锰酸钾5000元/吨；石油醚3000元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚15000元/吨。

Light oil 2,000 yuan / ton; ferrocene 28000 yuan / ton; DME 3,000 / ton; sodium hydroxide 2600 yuan / ton; Mercaptans 18,000 yuan / ton; Flavor 36,000 yuan / ton; Light EPA [density 0.60-0.63] 2,500 yuan / ton; sodium carbonate 1,000 yuan / ton; hydrogen peroxide 1,000 yuan / ton; xylene 4200 yuan / ton; potassium permanganate 5800 yuan / ton; petroleum ether 3,500 yuan / ton; naphtha 2900 yuan / ton; ethanol 2800 yuan / ton; dry gas 4100 yuan / ton; butane 2,500 yuan / ton; acetone 4400 yuan / ton; hydroquinone 18,000 yuan / ton; natural gas (6 gauge) 3850 yuan / ton; gasoline 97 # 3,500 yuan / ton; gasoline 93 # 3,100 yuan / ton; gasoline 90 # 2900 yuan / ton; diesel 0 # 3200 yuan / ton;-10 # diesel 3,500 yuan / ton .

轻质油2000元/吨；二茂铁28000元/吨；二甲醚3000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；香精36000元/吨；轻烃碳五[密度0.60-0.63]2500元/吨；碳酸钠1000元/吨；双氧水1000元/吨；二甲苯4200元/吨；高锰酸钾5800元/吨；石油醚3500元/吨；石脑油2900元/吨；乙醇2800元/吨；干气4100元/吨；丁烷2500元/吨；丙酮4400元/吨；对苯二酚18000元/吨；天然液化气(6个压)3850元/吨；汽油97＃3500元/吨；汽油93＃3100元/吨；汽油90＃2900元/吨；柴油0＃3200元/吨；柴油-10＃3500元/吨。

Production sites: 50 ㎡-200 ㎡. For another: light oil 2,000 yuan / ton; ferrocene 20,000 / ton; DME 2,500 yuan / ton; Light EPA [0.60-0.63 density] of 2,000 yuan / ton; sodium hydroxide 2600 yuan / ton; Mercaptans 18,000 yuan / ton; xylene 4200 yuan / ton; potassium permanganate 5,000 yuan / ton; petroleum ether 3,500 yuan / ton; naphtha 2900 yuan / ton; butane 2,000 yuan / ton; acetone 4400 yuan / t; hydroquinone 18,000 yuan / ton.

生产场地：50 ㎡-200 ㎡。另供：轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；二甲苯4200元/吨；高锰酸钾5000元/吨；石油醚3500元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚18000元/吨。

A new quasi-oligosaccharide alpha-amylase inhibitor as alcaftadine compound is represented as the formula at right, wherein m is integer of 0-7, n is integer of 1-4 and q is integer of 0-3, The mixture and monomer of the alcaftadine compound are white amorphous powder which dissolves in water and DMSO easily, dissolves in methanol, alcohol and acetone slightly and not dissolves in other organic solvents.

一类新的拟低聚糖类α-淀粉酶抑制剂，阿卡他定系列化合物，具有如右通式的结构，其中，m为0～7的整数，n为1～4的整数，q为0～3的整数。所述通式所示的阿卡他定系列化合物的混合物和单体均为白色无定形粉末，易溶于水和DMSO，微溶于甲醇、乙醇和丙酮，不溶于其它有机溶剂。

Results show that methanol, alcohol, isopropanol and acetone can effectively enhance the yield of potassium oxide.The yield of potassium oxide in different reaction system of ammonia-methanol, ammonia-alcohol, ammonia-isopropanol and ammonia-acetone are investigated respectively.

分别考察氨—甲醇、氨—乙醇、氨—异丙醇和氨—丙酮溶液体系在不同条件下的氧化钾收率，实验结果表明，氨—异丙醇溶液体系有利于改善工艺条件、提高氧化钾收率。

Methylenedioxyphenyl-2-propanone is a useful intermediate for the synthesis of methyldopa,an important antihypertensive agent.

以黄樟素为原料合成了抗高血压药甲基多巴的重要中间体3，4-亚甲基二氧苯基-2-丙酮。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。