二酸的

Examples of humectants include lactic acid, urea (the urea found in creams is synthetically produced by combining one molecule of carbon dioxide with two molecules of ammonia and not obtained from urine), hyaluronic acid (able to retain 1000 times its weight of water), propylene glycol, glycerin, sorbitol, gelatin, lecithin, sodium pyrrolidone carboxylic acid, and butylene glycol.

常见的湿润剂有乳酸，尿素（面霜里的尿素来自于二氧化碳和氨分子的合成而不是从尿中提取的），透明质酸（能保持自身成分1000倍的水分），丙二醇，丙三醇，山梨糖醇，明胶，卵磷脂，吡咯钠，羧基酸和丁二醇。

It indicates that the raw materials can be stored in temperature of 0-4℃ for 60 days, they must be immersed in clean water for more than one hour before processing, and peeling be carried out in flowing water; that color preserving solution should be 1.0% NaCl+0.2% citric acid+0.5% Vitamin C+110ppm dichloro isocyanuric acid sodium; that combined browning inhibiting solution is conspicuously effective, and immersion time better be around 20 minutes; that sterilization solution ought to be 200ppm dichloro isocyanuric acid sodium+0.5% ascorbic acid+0.3 citric acid, and 10 minutes' immersion will achieve the effect of sterilization and inhibiting browning; and that after 20-21 minutes of quick-freezing in temperature of -31℃~-32℃, the products can be preserved under -18℃ for a whole year.

通过对速冻牛蒡加工过程中原料储存、削皮方法、护色、浸泡时间、无热杀菌、包装形式等参数进行研究表明：原料0-4℃可储存60天，加工前用清水浸泡1小时以上，削皮时在流水中进行，护色液筛选的1.0% NaCl＋0.2%柠檬酸＋0.5%维生素C十110ppm二氯异氰脲酸钠；复合褐变抑制溶液在抑制褐变方面有显著的效果，浸泡处理时间为20分钟为宜；杀菌液为200ppm二氯异氰脲酸钠＋0.5%抗坏血酸＋0.3柠檬酸，浸泡10分钟即可达到灭菌和抑制褐变的作用；经-31℃~-32℃温度下速冻20~21分钟，产品在-18℃条件下可储存一年。

In the synthesis process, aluminum isopropoxide or pseudo-boehmite is used as aluminum resources, and hexacosanoic propylamine and isopropylamine or the mixture of both are used as templates, thereby realizing the purposes of single feeding adoption, relatively mild crystallization condition, suitable water-solid ratio and great template dosage reduction.

一种用杂原子取代AEL骨架结构磷铝酸盐分子筛的合成方法，该方法是以氯、钛、钴、钙、钯、锌、铈和锆等杂原子为杂原子物料来取代磷铝酸盐分子筛的AEL骨架结构，并在合成过程中以异丙醇铝或拟薄水铝石为铝源，正二丙胺、异二丙胺或两者的混合物为模板剂，从而实现采用一次投料，晶化条件相对温和，水固比适宜，模板剂用量大大下降的目的。

Meanwhile, we also well lay stress on the research and development for new products, separately cooperate with Shandong Food Fermentation Institute and High-Tech Fine Chemical Institute of Qingdao Chemical Industrial University, to study derivatives of itaconic acid such as itaconic anhydride, mono-methyl itaconate, dimethyl itaconate, and develop and produce them, which will be better service our customers, then do our best to make our company be best quality, best service and largest manufacturer for itaconic acid and its derivatives.

与此同时，我公司非常注重新产品的研究和开发，分别与山东省食品发酵研究院、青岛化工学院高新精细化学研究所进行合作，研究衣康酸衍生物，如衣康酸酐、衣康酸单酯、衣康酸二甲酯等的用途及开发利用，从而更好地服务于客户。力争把公司建成国内最大、质量最好、服务最佳的衣康酸及下游产品的生产厂家。

Meanwhile, we also well lay stress on the research and development for new products, separately cooperate with Shandong Food Fermentation Institute and High-Tech Fine Chemical Institute of Qingdao Chemical Industrial University, to study derivatives of itaconic acid such as itaconic anhydride, mono-methyl itaconate, dimethyl itaconate, and develop and produce them, which will be better service our customers, then do our best to make our company be best quality, best service and largest manufacturer for itaconic acid and its deviratives.

与此同时，我公司非常注重新产品的研究和开发，分别与山东省食品发酵研究院、青岛化工学院高新精细化学研究所进行合作，研究衣康酸衍生物，如衣康酸酐、衣康酸单酯、衣康酸二甲酯等的用途及开发利用，从而更好地服务于客户。力争把公司建成国内最大、质量最好、服务最佳的衣康酸及下游产品的生产厂家。

Monododecylphosphate was prepared by esterification of lauryl alcohol with phosphoric acid(mass fraction 85%) on cesium phosphotungstate catalyst.

以磷钨酸铯盐为催化剂，由月桂醇和85%的磷酸直接酯化合成单十二烷基磷酸酯，考察了带水剂种类、反应时间、磷钨酸铯盐催化剂中的铯取代数、催化剂用量和月桂醇与磷酸摩尔比等条件对磷酸转化率及单十二烷基磷酸酯选择性的影响。

The resin which was synthesized by the materials of hydroxy silicone oil , 1, 6-hexamethylene diisocyanate, tolylene diisocyanate, pentaerythritol triarylate and 2-hydroxy ethyl acrylate is able to cure rapidly at room temperature by UV.

本实验采用溶液聚合的方法，以端羟基硅油、甲苯二异氰酸酯、六亚甲基二异氰酸酯、丙烯酸—2—羟基乙酯和季戊四醇三丙烯酸酯为原料制备出了新型能够进行快速固化、高效的三官能度封端的光固化反应体系。

Two types of haptens, the earboxylated propyl amino derivative of the acid moiety (HCA1) that is the hydrolyzed product of cyhalothrin, and the carboxylated ethyl carbonyl derivative of the alcohol moiety (HCB2) were synthesized, and conjugated with the carrier proteins bovine serum albumin and ovalbumin respectively by the active ester method and the mixed anhydride method. The polyclonal antibodies were obtained after immuning to the New Zealand rabbits.

通过对氯氟氰菊酯分子结构中的酸部分接4-氨基丁酸(HCA1)和醇部分接丁二酸酐(HCB2)，合成两种不同的半抗原，并通过碳二亚胺法将HCA1和HCB2分别与牛血清蛋白偶联制备了人工抗原HCA1-BSA和HCB2-BSA，通过活泼酯法将HCA1、HCAS和HCB2分别与卵清蛋白偶联制备包被抗原，两种人工抗原通过免疫新西兰大白兔来制备相应的多克隆抗体。

In this research, liposoluble chlorogenic laurate was synthesized by the acylation with lauroy chloride in the existence of alkali catalyst in non-water phase, and yellowish CGL powders with a yield of 81.24% were obtained under the optimal synthesis conditions determined via single-factor tests and orthogonal experiments, that is, carrying out the acylation at 35℃ for 8h with a n:n: n ratio of 1:1:1.5 and with dimethylformamide as the solvating agent and the thinner.

文中对绿原酸进行了改性，即在碱性催化剂催化的条件下使其与月桂酰氯进行非水相的酯化反应，得到了脂溶性的绿原酸月桂酸酯。经过单因素及正交试验，确定了最佳合成条件为：以N，N-二甲基甲酰胺作为溶解、稀释剂，绿原酸／月桂酰氯／三乙胺的摩尔比为1：1：1.5，温度控制在35℃，反应时间8h。

The carboxylic acid and its ester may have straight chain or branched chain, and the catalyst is solid in the carrier of zirconia in precipitation process sol or marketable product.

其中，羧酸及其酯为C 2-20 羧酸及其酯，可以是直链或支链，催化剂是以固体的形式加入，载体二氧化锆是以沉淀法制备的凝胶，也可以直接用市场上购买的二氧化锆。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。