脂族二烯 的英文怎麼說

中文拼音 [zhīèr]
脂族二烯 英文
aliphatic diolefine
  • : 名詞1. (動植物所含的油質) fat; grease; tallow 2. (胭脂) rouge 3. (姓氏) a surname
  • : 名詞1 (家族) clan 2 (古代的一種酷刑) a death penalty in ancient china imposed on an offender ...
  • : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
  • : 名詞[化學] (有機化合物的一類) alkene; olefince
  1. Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp. by gas chromatography - mass spectrometry ( gc - ms ) analysis

    摘要採用氣相色譜質譜聯用分析技術從中新世水杉葉片和白堊紀松型球果兩種裸子植物化石中分別鑒定了51個和19個揮發性成分,類型涉及烷烴、烷、烷醇、長鏈肪酸及其酯、鄰苯甲酸酯、菇類和芳香化合物。
  2. A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage

    本文合成了高效酰化催化劑4 -甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱羧酸膽甾醇酯、酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,並進行了化學結構和液晶性能的表徵。
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