乙酸钠

The main results are as the following: 1. Different reagents are used to modify the 568nm-emission QDs and there influences on the optical qualities of QDs are discussed. A good method of modification by which the excellent optical qualities of QDs are kept is found. 2. The water-soluble QDs were linked to the antibodies using the coupling reagents ethyl-3- carbodiimide and N-hydroxysuccinimide.

具体包括的内容如下： 1讨论了不同修饰剂及它们的组合对量子点表面进行修饰后，量子点光学性质的影响，发现对于最大激发波长为568 nm的量子点，应用巯基十一酸与巯基乙酸钠组合对其修饰后，得到的水溶性量子点保持了脂溶性量子点的优良光学性质，其量子点产率相对于其他修饰剂或组合也比较高。

By single factor experiment,experiment studied on the effect on the dosage of NaOH、CHPTMA、sodium chloroacetate 、temperature and time to reaction.

并通过单因素实验讨论了NaOH用量、氯乙酸钠用量、3-氯-2-羟丙基三甲基氯化铵用量、反应温度和反应时间等对合成反应的影响。

Interimediate product, dodecyl glycerol ether was first synthesized and then reacted with sodium chloroacetate to obtain the product.

首先制备了中间产物十二烷基甘油醚，然后与氯乙酸钠反应制得终产物。

The dependence of concentration of free sodium hydroxide,hydrolyzation ratio of sodium chloroacetate,degree of substitutionand solution viscosity of product on reaction conditions in the synthesis of polyanionic cellulosein various alcohol mediums are studied.

研究了溶剂法合成聚阴离子纤维素过程中游离碱浓度、氯乙酸钠水解率和产品取代度及其溶液粘度与反应条件的关系。

Methods: In alkaline condition, reaction between amino acids and phenylisothiocyanate formed a derivant of phenylisothiocyanate-amino acid. For RP-HPLC, the Diamonsil C18 column 250 mm×4.6 mm,5 μm） and binary gradient elution were used. The mobile phase A was 0.1 mol/L sodium acetate solution-acetonitrile (93∶7） and the mobile phase B was acetonitrile-water（80∶20）. The detecting wavelength was 254 nm.

在碱性条件下，氨基酸与异硫氰酸苯酯反应，生成异硫氰酸苯–氨基酸的衍生物，采用 Diamonsil C18色谱柱（250 mm×4.6 mm，5 μm），用二元梯度洗脱方式，流动相A为0.1 mol/L乙酸钠–乙腈（93∶7），流动相B为乙腈–水（80∶20），检测波长254 nm。

It is referred to in foods as E262 or sodium diacetate.

用在食物中时称作E262或双乙酸钠。

Reactive oxygen/nitrogen species production was measured with 2',7'-dichlorodihydrofluorescein diacetate dye.

活性氧或氮类产物用双乙酸钠进行染色测量，蛋白酶-9和-12的活性用荧光酶抑制剂检测。

A new method for preparing sodium diacetate by one step reaction based on acetic acid and sodium carbonate was studied.

介绍了以醋酸和纯碱为原料，不加任何溶剂，采用一步法合成新型防腐剂双乙酸钠的新工艺，确定了最佳工艺条件：n：n为(4.0～4.2)：1；反应温度60～70℃；反应时间120～180min；醋酸加料时间40～60min，所得产品质量合格，收率可达96％以上。

In recent years, can be polymer powder, sodium diacetate and fill the production of such products in the domestic construction materials, food industry with Chinese-made blank.

近年可再分散乳胶粉、双乙酸钠的投产又填补了此类产品在国内建材、食品行业无中国制造的空白。

On the basis of developing a new technology to synthesize sodium diacetate successfully without any pollution,the culture of bigger crystal in perfect shape and single crystal of small dimension suitable for X-ray diffraction was attained.

在研究成功双乙酸钠零污染合成工艺的基础上，培养成功了晶型完美的大尺寸晶体和适宜进行X光结构分析的小尺寸单晶，并进一步应用四圆衍射仪测得其晶体结构。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。