查询词典 tartaric acid

The asymmetric transformation of L-Pro via the formation of salt with S-tartaric acid was carried out by butanal as catalyst and butanoic acid as solvent to obtain D-Pro · S-TA salt.

实验研究了L一Pro的消旋反应，并获得刀乙一脯氨酸，然后在消旋的基础上研究L一Pro的不对称转换，最后得到D一Pro。

Determination of tartaric acid and maleic acid by high performance liquid chromatography

它们分别由工业萘、三聚氰胺，经一定的酸、碱性条件下缩聚而成。

In this paper, the composition of zinc phosphating solution used at environmental temperature was researched. The composition is as followings: phosphoric acid 100 mL, monometallic sodium orthophosphate 20 g/L, zinc oxide 25 g/L, bluestone 1 g/L, sodium molybdate 1 g/L, sodium fluoride 1 g/L, tartaric acid 1 g/L.

研究了配制锌系磷化液配方：1 L溶液中加入磷酸100 mL，磷酸二氢钠20 g，氧化锌25 g，硫酸铜1 g，钼酸钠1 g，氟化钠1 g，酒石酸1 g。

The chemical composition research aspect literature report are extremely few: According to reports, the root of Rosa davurica pall includes the lactone, the tanning substance, the return to original state sugar, the total lucoside, the flavanone, the phenol class, the biological alkalis, the protein, the anthraquinone equi com ponent, moreover ,the total polysaccharide is the even polysaccharide which is composed by the fructose.In 1999, for the first time from puncture the root in the alcohol extraction to sep arate Oleanic acid. And used the double wave length thin layer scanning method to determine the uneven pillar tartaric acid in to puncture in the root ontent.

化学成分研究方面文献报道极少：据报道，山刺玫根中含有内酯、鞣质、还原糖、总苷、黄酮、酚类、生物碱类、蛋白质、蒽醌等成分，而且山刺玫根中总多糖是由果糖组成的均多糖。1999年，首次从刺玫根的乙醇提取物中分离出齐墩果酸，并采用双波长薄层扫描法测定了齐墩果酸在刺玫根中的含量。

Grapes are one of the few fruits to contain tartaric acid, the major wine acid and the most important source of acidity in wine.

葡萄是少数含有酒石酸的水果的一种，（酒石酸是酒中主要的酸性物质，同时也是酒的酸度的最重要来源）。

Cream of Tartar is tartaric acid and is a fine white crystalline acid salt which is a by-product of the wine-making industry.

霜的鞑是酒石酸和是一个很好的白色结晶性酸式盐是一种副产品的酿酒业。

New chiral boronic acid sensor was synthesized and its enantioselectivity towards tartaric acid was studied.

合成了新的由蒽及苯乙胺衍生的手性芳基硼酸荧光探针，研究了该手性探针对酒石酸的对映选择性识别作用。

The common aniondid not interfere determination of tartaric acid and citric acid.

O前言 离子色谱法是近十几年发展起来的一项新的色谱技术，已广泛用于阴离子和阳离子分析111。

Tartaric acid; acid of tartar, found in many plants and the juice of fruit,and used in making baking powder,etc

酒石酸，果酸(存在于许多植物和果汁中，用以制发酵粉等)。

Experiments show that DTPA, tartaric acid, citric acid, and glycollic acid are possible for stripping Pu〓 from the organic phase containing high concentration UO〓.

结果表明中试厂PUREX流程和TRPO流程的直接衔接是最为成熟和可行的一体化流程，其难点在于锆的处理。

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。