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乙醇酸

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New production technology of a solid acid catalyst for biodiesel production A solid acid catalyst of outstanding performances has been produced with this technology utilizing amylose , glucose and saccharose abounding in the nature through simple burning and sulfonation processes .

新型生物柴油生产用固体酸催化剂生产技术本技术利用自然界大量存在的多糖,葡萄糖和蔗糖等经过简单的灼烧磺化制备出性能突出的固体酸催化剂,该催化剂不溶于水,乙醇,甲醇,植物油脂和生物柴油。

Methods This study consisted of 36 male Wistar rats. A rat model of intestinal adhesions was done as follows: serous membrane of the caecum was scuffed, its raw surface was dropped with absolute alcohol, the mesentric artery of the caecum was then clamped. The rats were divided into three groups. PSS, sodium hyaluronate or normal saline was applied to the scraped cecum before closing the abdomen.

选用雌性Wistar大鼠36只,刮伤其盲肠浆膜,创面滴无水乙醇,钳夹盲肠系膜动脉制造大鼠肠粘连的动物模型,随机将动物分成3组,分别在关腹前于创面涂布藻酸双酯钠、透明质酸钠、生理盐水,术后14 d将大鼠处死,肉眼观察肠粘连程度并对粘连组织的基质金属蛋白酶2和金属蛋白酶组织抑制物2水平进行检测。

A Simple titanium resource and a soft preparation method is very important in the preparation of titania, hydrogen titanium oxide hydrate and sodium...

本文以无水乙醇作为溶剂,以钛酸四丁脂为钛源,采用溶剂热法制备氧化钛纳米粒子、钛酸纳米管,讨论了产品的形成机理。

Moreover, D-sodium gluconate was mixed with other substances and used as corrosion inhibiting admixtures. The admixture of D-sodium gluconate and sodium tetraborate has the best inhibiting effect among these mixed inhibitors.

复配试验表明,D—葡萄糖酸钠与四硼酸钠组成的复合缓蚀剂缓蚀效果最好,而与甘氨酸和乙醇胺复配的缓蚀剂也表现出较好的缓蚀效果。

The suitable detection wavelength was selected through qualitative determination of wave spectrum. With 95% ethanol as the reference solution, the standard curve was drawed with a series of different concn. of standard solution of chlorogenic acid, and the Absorbance of extracting solution was determined and the chlorogenic acid content in filtrate was calculated.

波谱定性检验选择适宜的测定波长,以95%乙醇为参比溶液,用配制好的一系列不同浓度的绿原酸标准溶液绘制标准曲线,测定提取液的吸光度,计算滤液中绿原酸的含量。

Experimental wastewater was composed of glucose and potassium sorbate wastewater.

废水的组成包括丁烯醛、山梨酸、山梨酸钾以及生产过程的载液、丙酮、醋酸、乙醇、甲醇等。

The analysis methods for the determination of micro or trace elements in high moisture jellyfish were developed. The fatty acid compositions in difderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids were identified, and most of them were found in R. esculentum jellyfish for the first time. Especially, two unusual very long chain polyunsaturated fatty acids that were never detected in the other jellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especially containing sulfur amino acids, and could be supplied for human diet. The polysaccharide in umbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecular weight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose and glycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported. The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents (petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts by four species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. The result demonstrated that the petroleum ether extract had certain bactericidal activity for two species of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rot pathogenic fungus.

建立了 高含水量的海蜇产品中微量、痕量元素成分测定的分析方法;采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成,共鉴定出 35 种脂肪酸,其中大多数脂肪酸是首次在海蜇中被检测到,尤其是两种不常见的 C24:5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道;海蜇三个部位中氨基酸成分齐全,含量丰富,含硫氨基酸含量较高,可与其它食物蛋白质的氨基酸互补;其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成,分子量为 40,000,海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成,分子量为 43,000,以上工作均未见报道;利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物,用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验,结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。

The analysis methods for the determination of microor trace elements in high moisture jellyfish were developed. The fatty acid compositions indifderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids wereidentified, and most of them were found in R. esculentum jellyfish for the first time. Especially,two unusual very long chain polyunsaturated fatty acids that were never detected in the otherjellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especiallycontaining sulfur amino acids, and could be supplied for human diet. The polysaccharide inumbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecularweight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose andglycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported.The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents(petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts byfour species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. Theresult demonstrated that the petroleum ether extract had certain bactericidal activity for twospecies of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rotpathogenic fungus.

建立了高含水量的海蜇产品中微量、痕量元素成分测定的分析方法;采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成,共鉴定出 35 种脂肪酸,其中大多数脂肪酸是首次在海蜇中被检测到,尤其是两种不常见的 C24:5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道;海蜇三个部位中氨基酸成分齐全,含量丰富,含硫氨基酸含量较高,可与其它食物蛋白质的氨基酸互补;其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成,分子量为 40,000,海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成,分子量为 43,000,以上工作均未见报道;利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物,用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验,结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。

Mercury thiocyanate spectrophotometry is used in determination of hydrochloride in air.

硫氰酸汞分光光度法测定空气中氯化氢,方法试剂空白不稳定,控制显色温度和硫氰酸汞—乙醇溶液的制备是降低并稳定试剂空白的关键所在。

Water,propylene glycol,butylene glycol,glyceryl polymethacrylate,peg-7 glyceryl cocoate,biosaccharide gum-1,phenoxyethanol,hydroxyethylcellulose,ppg-26-buteth-26,chondrus crispus,peg-40 hydrogenated castor oil,sodium hydroxide,methylparaben,benzophenone-4,disodium edta,citrus aurantium dulcisoil,sorbic acid,butylparaben,ruscus aculeatus root extract,glycyrrhiza glabraroot extract,aesculus hippocastanumseed extract,pentadecalactone,iris germanica root extract,rentinyl palmitate,tocopheryl acetate,sodium hyaluronate,citrus aurantium amaraoil,sorbitol,propylparaben,ethylparaben,limonene,linalool,yellow 5,red 4,red 33

水,丙二醇,丁二醇,甘油聚甲基丙烯酸酯,PEG-7 椰子油酸单甘酯,多醣物质,苯氧乙醇,羟乙基纤维素,PPG-26-丁醇聚醚-26,卡拉胶,PEG-40氢化蓖麻油,氢氧化钠,羟苯甲酯,二苯酮-4,乙酸乙二胺二钠,甜橙油,山梨酸,羟苯丁酯,假叶树根萃取,甘草根萃取,欧洲七叶树籽萃取,环十五内酯,鸢尾花根萃取,维他命A酯,醋酸盐维他命E ,透明质酸钠,苦橙油,山梨醇,羟苯丙酯,羟苯乙酯,柠檬精油,芳樟醇,黄5,红4,红33水:几乎所有护肤品成分第一位都是水。丁二醇:保湿剂及溶剂,质地温和

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