| 单词 | 呱呱 | ||||
| 释义 | 呱—crying sound of child呱呱—(onom.) sound of frogs, ducks etc
|
采用N-甲基咪唑和氯丙基咪唑反应的方法制备得到了离子液体键合硅胶固定相,并利用该固定相中的咪唑环阳离子和被分析物之间存在的多重作用机理如疏水作用、静电吸引和排斥及氢键作用等,以纯水作为流动相,成功地分离了碱基(胞嘧啶、胸腺嘧啶、2-氨基嘧啶和6-氯鸟嘌呤)、酚类化合物(间氨基酚、间苯二酚和间硝基酚)以及3种药物化合物(盐酸吗啉呱、阿昔洛韦和头孢氨苄)。 chrom-china.com | N-methylimidazolium ionic liquid（IL）-modified silica was prepared with the reaction of 3-chloropropyl modified silica and N-methylimidazole using toluene as solvent. Based on the multiple interactions between N-methylimidazolium IL-modified silica and analytes such as hydrophobic interaction, electrostatic attraction, repulsion interaction, hydrogen-bonding, etc., the bases (cytosine, thymine, 2-aminopyrimidine and 6-chloroguanine), phenols (m-aminophenol, resorcinol and m-nitrophenol) and three pharmaceuticals (moroxydine hydrochloride, acyclovir and cephalexin hydrate) were separated successfully with only pure water as the mobile phase. chrom-china.com |
价格:10元以下 适用年龄:3岁以下 颜色分类:小红花一排四个, 彩色五角星一排五个, 彩色爱心一排三个, 彩色五角星一排四个, “奖”一排三个, 53元包邮发60包，款式请留言, 黄色五角星一排四个 , 彩色五角星一排三个, 20包图案随机（尽量不重复）, 红绿苹果一排四个, [...] “五星”小红旗, 小红花一排三个, “优奖好良”小花, “ OK”拇指贴, [...] 红色苹果一排三个, 彩色笑脸一排四个, “顶呱呱”苹果一排四个, 黄色笑脸一排四个, [...]黄色笑脸一排三个, 彩色爱心一排四个, “ 好”拇指贴, “好”小红旗 所在地:上海上海 tw.70900.com | price: less than $ 10 applies Age: 3 years old color classification: a row of small red four color five-pointed star of a row of five, the color love a row of three, a row of four colored five-pointed star, "award" a row of three, 53 yuan issued 60 package styles please leave a message, a yellow five-pointed star of a row of four color five-pointed star pattern of a row of three, 20 bags randomly (try not to repeat), a row of red and green apples in a row four, the "five-star red flag safflower three" good "gifted Award flowers OK "thumb, [...] three red apples in a row, a row of four [...] colored smileyface," TKK"Apple a row of [...]four yellow smiley face on a row of four yellow [...]smiley face on a row of four in a row three, the color of love," thumb paste, good small the red flag location: of Shanghai Shanghai 70900.com |
英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。