二钠的

In Chapter 2, enantioseparations of four pairs of neutral and poorly water-soluble organophosphorus pesticides enantiomers were achieved by using natural chiral surfactant sodium cholate either with sodium dodecyl sulphate or with γ-cyclodextrin in nonaqueous solvent or aqueous-organic solvent systems.

第二章在非水介质或水相/有机介质中，或将天然表面活性剂胆酸钠与阴离子表面活性剂十二烷基硫酸钠构成混合手性胶束，或将胆酸钠与γ-环糊精构成二元手性协同体系，用于中性疏水有机磷农药对映体的手性拆分。

In borate solution, The order of effective mobilities of disaccharide-borate compolexes was saccharose＜celloiose＜ maltose＜lactose and that of polylol- borate complexes was ethylene glycol＜ propanetriol＜erythritol＜sorbitol＜mannitol＜dulcitol.

在碱性四硼酸钠溶液中二糖硼酸络合物淌度顺序为：乳糖＞麦芽糖＞纤维二糖＞蔗糖，多元醇硼酸络合物的淌度顺序为：六羟基多元醇＞四羟基多元醇＞三羟基多元醇＞二羟基多元醇。

The synthesis methods of dibutyl succinate catalyzed by p-toluene sulfonic acid, amino sulfonic acid,strongly acidic cationic exchange resin, ferric chloride hexahydrate, stannic chloride pentahydrate, copper sulfate , ammonium ferric sulfate dodecahydrate, titanium sulfate, sodium bisulfate monohydrate,and solid super acid et al were reviewed.

本文评述了对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、六水三氯化铁、五水四氯化锡、十二水合硫酸铁铵、硫酸钛、一水硫酸氢钠和固体超强酸等催化剂催化合成丁二酸二丁酯的方法。

In this method, EDTA was used as complexant which can form 1∶1 complex with Cr〓, this complex carried negative charge and can be detected directly by UV absorbance at 200nm, therefore, the CrO〓 and Cr〓 can be separated and determined in one run.

采用乙酸钠-乙二胺四乙酸钠-CTAB-乙酸缓冲液体系，加入EDTA使Cr〓与其生成的1∶1络合物，带负电荷且具有紫外吸收，在200nm处可用直接紫外法检测。

Using pentaerythritol as initiator, boron trifluoride diethyl etherate as catalyst.dichloroethane as dispersion agent, the chloride polyether polyol is synthesized based on the mechanism of cationic ring-opening polymerization of epiclilnrohyclrin.The azide polyether polyol is synthesized, in DMF through A and sodium azide, and the non-reported azide energetic curing agent is synthesized through the adduction of B and IIDI.

以季戊四醇为起始剂，三氟化硼乙醚为催化剂，1，2—二氯乙烷为分散剂，环氧氯丙烷经阳离子开环聚合反应制成氯化聚醚多元醇，A在N，N—二甲基甲酰胺中与叠氮化钠反应制得叠氮聚醚多元醇，B与六亚甲基二异氰酸酯加成反应制得未见文献报道的叠氮固化剂。

Then sodium ethoxide was used as base,the nucleophilic substitution of 2-pyrrolidone with the intermediate provided nefiracetam.

以碳酸钠为缚酸剂，摩尔比为1︰1的2，6-二甲基苯胺与氯乙酰氯反应合成了中间体2-氯-N-(2，6-二甲基苯基)乙酰胺；在强碱乙醇钠作用下，2-吡咯烷酮再与2-氯-N-(2，6-二甲基苯基)乙酰胺经亲核取代合成了目标化合物奈非西坦。

A technique of simultaneous quantitative determination of sodium laurate and sodium dodecyl bezene sulfonate in mixed solutions is developed by using high performance liquid chromatorgraphy.

建立了用高效液相色谱法同时测定月桂酸钠和十二烷基苯磺酸钠浓度的方法。

Calcium montmorillonite was prepared by purifying LeXi bentonite with wet method two times. After purification, sodium modification of Ca-M was studied. A series of Fe/Cr-pillared montmorillonites were prepared with conventional method using sodium montmorillonite as experimental materials, and synthesis condition of Fe/Cr-PILM was studied and optimized. In order to shorten the preparation cycle of PILM by overleaping the step of sodium modification of Ca-M, the pretreatment technique for Ca-M has been pointed out for the first time. A series of PILMs were prepared with hydrothermal method using pretreated Ca-M as starting materials, which show that pretreatment of Ca-M is feasible.

然后，本文以莱西膨润土为原料，用二次湿法提纯了-2μm的钙基蒙脱石，对其进行了钠化改型研究；以改型后的钠基蒙脱石为原料，新型的铁、铬复合离子为柱化剂，研究并优化了常规离子交换法制备PILM的工艺；为了简化PILM的制备工艺，我们首次提出了蒙脱石的预处理工艺，希望通过预处理后可以省去蒙脱石的钠化工艺，以Ca-M为原料直接合成PILM。

The resultant of dehydration of both sodium silicate and polysilicic acid is silicic gel. The sodium cations have double impact on the process.

硅酸钠脱水硬化和纯硅酸脱水硬化都生成硅凝胶，钠正离子的存在有正负二重影响。

By orthogonal experimental design method, the optimized degumming parameters have been confirmed: preacid processing, the concentration of sulfuric acid 2 g/L, treatment time 120 min, treatment temperature 60℃, bath ratio 1:15; alkali treatment, the alkaline concentration of one-pot 7.5 g/L, that of two-pot 9 g/L, treatment time of one-pot 3.5h, that of two-pot 2h, treatment temperature 100℃, bath ratio 1:20, each concentration of the Sodium Silicate, carbamide, and JFC 2%.

预酸处理，硫酸溶液质量浓度2 g/L，处理时间120 min，处理温度60℃，浴比1：15；碱处理，一煮碱溶液质量浓度7.5 g/L，二煮碱溶液质量浓度9 g/L，一煮处理时间3.5 h，二煮处理时间2 h，处理温度100℃，浴比1：20，其中一煮与二煮中添加2%的硅酸钠、尿素和JFC。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。