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酚盐

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Water, Beta-glucan, Ascorbic acid, Tri Sodium Ascorbyl Palmitate Phosphate, Magnesium L-ascorbyl -2-phosphate, PEG-60 hydrogenated castor oil, Lecithin, Coceth-7 / PPG-1-PEG 9 lauryl glycol ether/PEG 40 hydrogenated castor oil, DL-panthenol, Retinyl, palmitate, Anthemis Nobilis Flower extracts, Pinebark extract, Phellinus linteus extract, Phellinus linteus / Rice Ferment Extract, Onion extract, Aralia Elata Root Extract, Grape extract, Sandalwood oil, Myrtle oil, Orange oil, 1,3-Butylene glycol, Glycerin, Xanthan gum, Tocopheryl acetate, Ethanol, Methyl paraben

水, β-葡聚糖,抗坏血酸、三磷酸抗坏血酸棕榈酸酯钠、维他命 C 磷酸镁盐、聚乙二醇- 60氢化蓖麻油、卵磷脂、椰油醇聚醚-7 / PPG-1-PEG-9 月桂二醇醚/聚乙二醇40氢化蓖麻油,消旋泛酰醇,视黄醇,棕榈酸盐,白花春黄菊花提取物, Pinebark提取物,桑黄提取物,桑黄/水稻发酵提取物,洋葱提取物,辽东楤木根提取物,葡萄提取物,檀香油,桃金娘油,橙油, 1,3 -丁烯乙二醇,甘油,黄原胶,生育酚,乙醇,羟苯甲酯

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 effects of transition metal salt catalyst,reaction temperature and time on the yield of resorcinol were investigated.

考察了过渡金属盐催化剂、反应温度、时间等对间苯二酚收率的影响,结果表明在催化剂与硫酸摩尔比0.008∶2、反应温度220 ℃,反应时间9 h条件下,间苯二酚收率达到90.2%。

Then VIII reacted with hydrochloric acid and bromoethlane respectively to get tertiary ammonium chloride and quaternary ammonium bromide cationic surfactants, and the properties of cations were detected by the method of bromophenol blue.

然后再与盐酸和溴乙烷反应,合成铵盐和季铵盐型含氟阳离子表面活性剂,利用酸、碱性溴酚兰实验和铁氰化钾法分别对表面活性剂进行了定性和定量分析。

Color reaction was performed in organic solution-salt solution biphasic system. The organic solution was 1,2-Dichloroethane-Isoamyl alcohol mixture (V/V=96:4) added Bromophenol blue (per 100 mL added 0.05 g). The salt solution was 55%K2HPO4 aqueous solution added Na3CO3 (per 100 mL added 14 g), under the temperature of color reaction between 12℃ to 25℃.

显色反应在有机溶液-盐溶液两相体系中进行,有机溶液为每100 mL 1,2-二氯乙烷-异戊醇混合溶液(体积比96:4)加入0.05 g溴酚蓝,12~25℃显色反应条件下,盐溶液为每100 mL 55%K2 HPO4水溶液加入14 g Na2CO3。

The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

结果表明,在碳酸二(4-硝基苯基)酯合成中使用的相转移催化剂四乙基溴化铵对受界面扩散控制的BTC气与对硝基酚钠反应有良好的相转移催化效果;氢氧化钠质量分数较低时,酚钠盐向溶有BTC的油相扩散速度较小,较高时会产生氯甲酸对硝基苯酯;温度较低、BTC量较高时,会产生少量氯甲酸对硝基苯酯,BTC用量较低会使反应不完全,这些都影响着收率。

Aqua, Helianthus annuus seed oil*, Simmondsia chinensis seed oil*, Glycerin*, Cetearyl alcohol, Alcohol denat.

水, 荷荷芭油,小麦胚芽油,甜杏仁油,杏桃仁油,乳香精油,没药精油:向日葵油,甘油,甘油基硬脂酸盐,,生育酚:具维生素E性质的醇,醋酸盐;醋酸酯,(山梨醇硬脂酸酯:表面活性剂),苯氧乙醇

The method comprises following steps: taking diphenol and 3- trifluoromethyl- 4- chloronitrobenzene as raw material, salt precipitating for diphenol and potash, refluxing with water- containing toluene, reacting with 3- trifluoromethyl- 4- chloronitrobenzene and getting dinitro monomer; taking dinitro monomer, ferro powder and HCl as raw material, ethanol and water as disslovant for refluxing and ethanol recrystallization, getting fluorine- containing aromatic diamido monomer.

合成方法是以二酚与3-三氟甲基-4-氯硝基苯作原料,先将二酚与碳酸钾成盐,甲苯带水回流反应,然后与3-三氟甲基-4-氯硝基苯反应制得二硝基单体;再以二硝基单体,铁粉,HCl为原料,乙醇和水做溶剂,回流反应、乙醇重结晶,得到含氟芳香二胺基单体。

Therewas a significant characteristic of the vertical distribution of soil enzyme activity,the relationship analysis indicated that there was a significant positive relationshipbetween the catalase activity and OM,and total N,and effective P、K,and ex-changible Mg,there was a negative relationship between the catalase activity andBase Situatiou percentage,and Total Contents of Base;the activity of the polyphe-nol oxidase was positively related with OM,and negatively related with total N andexchangible Ca clearly;The urease activity decreased with CPR increasing,and thechange of the former two kinds of soil enzyme actirity was not significantly withCPR increasing,It is possible to be related with maned disturbance frequently.

随着代次增加,有机质和交换性Ca下降明显;土壤的CEC和交换性酸分别下降了8.8—16.1%和6.8—18.5%,因此,其养分总量亦逐代降低,其中有机质下降幅度最大;土壤酶的活性具有明显的垂直分布特征,相关分析表明,过氧化氢酶活性与土壤OM、全N、有效P、K和交换性Mg有极显著的正相关,而与盐基总量、盐基饱和度呈明显的负相关。多酚氧化酶活性与OM呈显著负相关,与全N、交换性Ca有显著相关。脲酶活性则有随连栽代次增加而有下降趋势,前两种酶在代次之间变化不明显,可能与频繁的土壤干扰有关。

The purpose of this work is to develop new methods for syntheses of polyimides derived from chlorophthalic anhydrides.

本工作的目的是以氯代苯酐和二胺为原料,制备双氯代酞酰亚胺单体,然后进行聚酰亚胺合成方法的研究,以达到减少合成步骤,降低其生产成本的目的,主要内容如下: 1由双氯代酞酰亚胺与双酚A在不同体系中进行聚合反应,发现双酚是否完全成盐和聚合体系含水量是决定聚合物分子量的关键因素。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。