乙酸钠

Ingredient: This product is a kind of carboxymethyl cellulose sodium salt ,which generated from the interaction between Absorbent cotton gauze in alkaline conditions and chloroacetic acid .

成份：本品为脱脂棉纱布在碱性条件下与氯乙酸作用生成的纤维羧甲基醚的钠盐。

Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying.

以精制棉、氯乙酸、氢氧化钠和过氧化氢为原料，经过碱化、醚化、洗涤、干燥，制得羧甲基纤维素钠。

In this research, the concentration of PbCrO4 in the reaction can be as low as 58g-L-1 without any ill influence on the experiment. Therefore, some leachate can be used to produce yellow chrome directly without concentration.

乙酸铅或硝酸铅与代替重铬酸钠溶液的铬渣滤液反应时，其用量应高于理论值，大约为理论值的1.10～1＊倍，才能使六价铬充分反应，使生成的铬黄量达到最大值。

In order to optimize an effective combined preservative applied to the orange juice preservation, the authors studied the synergistic effect of biological and chemical combined preservative which contained Nisin, potassium sorbate, EDTA and sodium isoascorbate in preservation of orange juice compared to preservation effect of each aforementioned additive in individual use. Results show that the growth of microorganisms can not be inhibited completely using each aforementioned additive in single use.

该文以天然生物防腐剂乳酸链球菌素、化学防腐剂山梨酸钾、乙二胺四乙酸以及食品抗氧化剂异Vc钠为原料，对通过复配后得到的各组复合型防腐剂在橙汁保鲜中的协同增效作用进行研究，并且与单一的防腐剂保鲜效果进行比较，得出一组适合在橙汁中使用的高效复合型防腐剂。

The device based on the copolymer with 1% molar fraction of Ir complex in the polymer had a peak luminous efficiency of 2.89 cd/A, and the maximal luminance of 1689 cd/m^2 with the configuration of ITO/PEDOT: PSS/emissive layer/Ba/AlPEDOT: poly(3, 4-ethytenedioxythiophene, PSS: poly.

基于铱配合物摩尔分数为1%的聚合物发光器件（器件结构：ITO/PEDOT： PSS/emissive layer/Ba/Al，PEDOT：聚（3， 4-亚乙基二氧噻吩），PSS：聚苯乙酸磺酸钠）在电流密度为40×10^(-3)A/平方公分时，最大电流效率达到2.89cd/A，器件的最大亮度达到1689cd/平方公尺，色坐标为(0.34， 0.59)。

S. miltiorrhiza depside salts are a complex mixture of magnesium lithospermate B, rosmarinic acid and lithospermic acid. To research the metabolism and pharmacokinetics of S. miltiorrhiza depside salts in vivo was a challenge for the common analytical methods.

丹参多酚酸盐是由中国科学院上海药物所研制的创新中药，由丹参经提取精制的多酚酸盐类化合物所组成，含丹参乙酸镁（≥80.0%）及其同系物迷迭香酸钠和紫草酸镁，临床上用于治疗冠心病心绞痛。

The compositions can also contain microcrystalline cellulose, croscarmellose sodium, anhydrous lactose, magnesium stearate, micronized edetate calcium disodium hydrous, and micronized sodium thiosulfate pentahydrate.

所述组合物也可以包含微晶纤维素、交联羧甲纤维素钠、无水乳糖、硬脂酸镁、微粒化的含水乙二胺四乙酸钙二钠和微粒化的硫代硫酸钠五水合物。

The products were identified by IR,NMR,MS and elemental analysis. In our method,K.OH was used in place of NaOH to synthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate was purified on a silica gel column with chloroform/ethylacetate(4:l,v/v) as eluent and further purified by triturating with hexane/acetone(2:l,v/v).The luminescence produced by DMAE-NHS is a flash light with maximumemission at 0.4s and decay half-time of 0.9s. The luminescence intensity is 6.11x10 cps/mol,which is affected by the composition of trigger and surfactant.

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿/乙酸乙酯(4：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，第二次柱层析用己烷/丙酮(2：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷/丙酮(2：1，Ⅴ：Ⅴ)进行研磨，过滤，洗涤，除去溶于己烷/丙酮(2：1，Ⅴ：Ⅴ)的部分，得到所需要的产品。

The protocol of this research would be carried out as follows: to evulate effects of sodium ferulate on experimental colitis model of rats induced by acetic acid and investigate its mechanism; to evulate effects of sodium ferulate on experimental colitis model of rats induced by trinitrobenzene sulfonic acid with ethanol and investigate its mechanism.

我们在建立乙酸、三硝基苯磺酸(2，4，6-trinitrobenzene sulfonic acid，TNBS)两种经典大鼠结肠炎模型的基础上，采用灌肠给药方式来观察阿魏酸钠对这两种大鼠实验性结肠炎的作用效果，进而从不同角度对其有关机制进行探讨，以期为阿魏酸钠成为IBD有效治疗药物的开发应用提供实验依据。

The results of this reseach showed that administration of SF intracolonically had protective effect on the colon injury in the rat model of colitis induced by acetic acid enema, which was probably due to the mechanism of antioxidation, inhibition ofarachidonic acid metabolis and platelets activation, administration of SF intracolonically also showed protective effect on the colon injury in the rat model of colitis induced by trinitrobenzene sulfonic acid and ethanol, which was probably due to antioxidation and inhibition of macrophages activation.

实验研究表明，大鼠分别经乙酸、TNBS和乙醇处理后均出现典型的结肠炎症状，给药后分别评价结肠粘膜损伤指标、结肠组织病理变化，检测结肠组织炎症指标、结肠组织氧化损伤指标及主要炎性细胞因子改变；实验结果：阿魏酸钠对大鼠乙酸性结肠炎结肠粘膜损伤具有缓解保护作用，其机制可能与直接抑制炎症结肠粘膜花生四烯酸代谢过度，抑制血小板活化，清除大量氧自由基有关；阿魏酸钠对大鼠TNBS性结肠炎粘膜免疫损伤亦具有缓解保护作用，其机制可能与抗氧化，抑制结肠巨噬细胞活化有关。

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。