Regioselectivity and composition of the green nitration products between methyl salicylate and iron(ⅲ) nitrate 硝酸铁与水杨酸甲酯绿色硝化的选择性及其副产物组成的研究
Methyl salicylate and camphor also may be poisonous when applied to a large area of the skin, or when combined with heat to increase absorption of the active ingredients. 当樟脑和水杨酸甲酯应用到大面积皮肤或与热相结合时会引起中毒,主要是由于提高对有效成分的吸收。
Results The contents of menthol and methyl salicylate in6 lots of samples were determined and the constituents concerned were separated well under the chromatographic condition. 结果共测定了6批样品,在该色谱条件下,薄荷脑和水杨酸甲酯及内标物正十五烷均得到良好的分离。
Some cases of accidental overdose of methyl salicylate and camphor have been fatal. 意外服药过量的甲基水杨酸和樟脑是致命的。
The microcapsule of methyl salicylate ( MS) was prepared by utilizing dried yeast ( S. 以灭活的干酵母细胞为囊壁材料制备水杨酸甲酯微囊。
Methods: The penetration flux of methyl salicylate through rat skin in vitro was performed by high performance liquid chromatograph ( HPLC) and improved Franz diffusion cells. 方法:用改进的Franz扩散池和高效液相色谱(HPLC)法测定水杨酸甲酯通过离体小鼠皮肤的通透流量。
Study on Synthesis of Methyl Salicylate Catalyzed By Tungstophosphoric-acid As a Catalyst 磷钨酸催化合成水杨酸甲酯的研究
The glycosidic aroma precursors in leaves of Zhuye are mainly consisted of glycosides of cis 3 hexenol, linalool and its oxides, methyl salicylate, geraniol, benzyl alcohol and phenylethanol. 研究结果表明,槠叶种鲜叶中存在以顺3己烯醇、芳樟醇及其氧化物、水杨酸甲酯、香叶醇、苯乙醇、苯甲醇等为苷元的糖苷类香气前体。
The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively. 概述了4羟基香豆素的合成方法,重点介绍了苯酚法,乙酰水杨酸法,水杨酸甲酯法,邻羟基苯乙酮法。
Study on the Scavenger Activities of Methyl Salicylate against Hydroxyl Radical 水杨酸甲酯清除羟基自由基活性的研究
Determination of camphor, menthol, synthetic borneol and methyl salicylate in four kinds of TCM adhesive plasters by GC 4种中药橡胶膏剂中樟脑、薄荷脑、冰片和水杨酸甲酯含量的气相色谱法测定
Analysis Mixture of Cineole, Camphor, Menthol and Methyl Salicylate by Gas-Liquid Chromatography 桉叶素、樟脑、薄荷脑、水杨酸甲酯混合物的气相色谱分析
CONCLUSION This method is selective, simple, accurate and suitable for the determination of camphor, menthol and methyl salicylate contents in compound menthol nasal drops. 结论本法专属性强、操作简便、准确性高,适用于复方薄荷脑滴鼻液中樟脑、薄荷脑和水杨酸甲酯的含量测定。
Methods: The temporal bones of the guinea pigs were cleared in methyl salicylate and inspected under a stereomicroscope. 方法:用碳素墨水加0.1mol·L-1甲醛进行左心室灌注,将豚鼠的颞骨标本用冬青油透明并进行显微检查及透射电镜检查。
The study of optimum reaction condition of synthesis of methyl salicylate catalyzed by zro_2/ so_2~ ( 2-) with design of orthogonal experiment 正交试验设计法评价ZrO2/SO4~(2-)催化合成求杨酸甲酯的最佳反应条件
Preliminary Analysis of Residue from Methyl Salicylate Production 水杨酸甲酯废渣的初步分析
Study on synthesis of methyl salicylate using microreactor-HPLC technique 微型反应器-HPLC催化合成水杨酸甲酯的研究
A wavelet packet transform latent variable regression ( WPLVR) method was developed to perform simultaneous determination of methyl salicylate ( MSA), dibutyl phthalate ( DBP) and potassium hydrogen phthalate ( PHP) in their mixture. 采用小波包变换潜变量回归(WPLVR)方法,同时测定水杨酸甲酯(MSA)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸氢钾(PHP)。
The methods were applied to treat overlapping UV spectrum of mixtures of methyl salicylate, dibutyl phthalate and potassium acid phthalate. 将离散变换主组分回归方法用于处理水杨酸甲酯、邻苯二甲酸二丁酯和邻苯二甲酸氢钾混合物的重叠紫外吸收光谱数据。
OBJECTIVE Studies of methyl salicylate ( MS) with and without skin homogenate were also conducted at 37 ℃. In vitro simultaneous transport and metabolism of methyl salicylate were studied using skin from pig. 目的:研究水杨酸甲酯(MS)在小猪皮肤中同时渗透和代谢特性及在皮肤匀浆中的代谢作用。
Isolation and Identification of Methyl Salicylate 2-O-β-D-xylosyl ( 1 → 6)β-D-glucopyranoside from the Seed of Schisandra propinqua 满山香子中水杨酸甲酯2-O-β-D-木糖基(1→6)-β-D-葡萄糖苷的分离与鉴定
The optimum reaction ratio of rare earth, methyl salicylate and NO of the color reaction was found to be 2:2:1 by means of equimolar series method. 采用等摩尔系列法确定了显色反应中稀土、水杨酸酯和NO之间的反应比为2:2:1。
The results indicated that the nitration process began with the formation of coordination complexes of copper with methyl salicylate, which then activated the nitrate group to liberate oxygen and nitroxyl radical. 结果表明,该硝化过程首先形成了水杨酸甲酯铜配合物,从而使硝酸根得到活化,形成氧自由基和硝基自由基。