丙酮

BH loading tast and urine pterin analysis can be used as differental diagnosis methods for classical PKU and BH deficiency.

血苯丙氨酸浓度在口服BH后无明显变化，尿喋呤谱分析基本正常的患儿诊断为经典型苯丙酮尿症

An improved method that facilitates the extraction of PCR-compatible faecal DNA from giant panda\'s faeces is described. The method involves a novel preprocessing step in DNA extraction. The faeces is washed two or three times with precooled acetone, which removes numerous potential PCR inhibitors, and then digested with proteinase K. The DNA is purified with phenol/chloroform.

在粪便DNA的提取过程中采用一个新的预处理方法，将粪便用预冷的丙酮洗2～3次，除去粪便中含有的大量PCR抑制物，然后蛋白酶K裂解、酚-氯仿抽提，能提取到纯度很高的DNA供PCR扩增。

Methods Peripheral blood and feces were collected from 34 colon cancer patients and 20 healthy persons, respectively. The levels of TU M2-PK in plasms and feces were measured by ELISA.

目的 评估血浆及粪便中肿瘤M2型丙酮酸激酶(TU M2-PK)作为肿瘤标志物在结肠癌患者临床诊疗中的应用价值。

The protein and the fatty compounds in the sample are precipitated by zinc acetate and potassium ferrocyanide, then the chromogenic reaction of acetylacetone with formaldehyde released from the sample in weak-acid medium and boiling bath takes place immediately.

提出了一种用於现场测定水发食品中甲醛含量的样品快速前处理新方法，采用乙酸锌和亚铁氰化钾沉淀样品中的蛋白质和脂肪，在弱酸性介质和沸水浴条件下提取了样品中的甲醛，并与乙酰丙酮立即发生显色反应。

The phosphines such as 〓, dppm bis(diphenylphosphinemethane, dppebis(diphenylphineethane and dppp bis(diphenylphosphinrpropaneare chosen for study. The chloro alkane, bromide alkane and acetone arechosen as solvents.

选择有机单膦〓和双膦配体dppm二(二苯基膦甲烷、dppe二(二苯基膦乙烷、dppp二(二苯基膦乙烷与〓反应，选择氯代烷、溴代烷和丙酮为反应溶剂。

The effects of some important factors on structure, pore size, porosity, flux, weight of vapor transfer, etc. have been investigated by changing temperature of PVDF resolution, types of solvent, molecular weight of PVDF, weight of additive, time of solvent pre-evaporation and so on. The optimal process of making membrane and recipe of solution were made out.

然后通过改变PVDF溶解温度，铸膜液的溶剂，PVDF的分子量，PVDF用量，添加剂氯化锂用量，涂膜时预挥发时间，凝固浴温度以及凝固浴中无机盐氯化钠、溶剂丙酮等影响因素，考察这些因素对膜形态结构及孔径，孔隙率，水通量，透湿量等性能的影响规律，初步确定了铸膜液配方及涂膜工艺条件。

Some technologies,including olefines from methanol,oxalates and ethylene glycol from carbon monoxide,carbon dioxide-based polymers,chemicals from the syngas prepared by biomass gasification,acetone and butanol by fermentation,and chemicals from acetylene,ethanol,glycerol,furfural,hydroxymethyl furfural and starch,were reviewed.

包括甲醇制烯烃，一氧化碳制草酸酯和乙二醇，乙炔化学品，二氧化碳聚合物，生物质气化合成化工产品，发酵法生产丙酮、丁醇，乙醇衍生化工产品，甘油合成化工产品，糠醛和羟甲基糠醛合成化工产品，淀粉合成化工产品等重要的石油替代化学品生产技术被介绍。

Medical food Phenylketonuria food, protein-free bars

医疗食物类抗苯丙酮酸尿症食物，无蛋白质棒

It is easy to absorb the moisture, and can be soluble by absorbing the water in the air. The water-free Zinc Chlorideis easily soluble in water. It is soluble in ethanol ,acetone and

易吸潮，能自空气中吸收水分而溶化，氯化锌水合物有1、2、3、4个结晶水，无水氯化锌极易溶于水中，能溶于乙醇、丙酮和丙三醇中，具有腐蚀性，并具有使纤维素润胀的性质，有毒性，灼热时，有浓厚白烟生成。

Alcohol resin, alkyd type paint to use organic solvents such as turpentine, pine water, gasoline, acetone, ethyl ether and other unpleasant smells.

醇脂、醇酸类漆使用的有机溶剂如松节油、松节水、汽油、丙酮、乙醚等气味难闻。

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。