十一烷

这种物质的化学名字叫E，E-2,4-十一烷二烯醛。这种物质在极低浓度下（10ppb）就可以发挥作用，因此，你是闻不到这种物质的。

It 's called ( E , E ) - 2,4-Undecadienal . It works at a very low concentration - 10 parts per billion - so you can 't smell the compound .

但奇碳数正构烷烃（正壬烷、正十一烷）与ETS标志物具有一定的相关性。

However , odd carbon n-alkanes ( n-nonane , n-undecane ) show better correlation with ETS markers .

呼吸气体中苯乙烯，癸烷，十一烷等22种有机挥发性（VOCs）特征气体浓度测试便是一种很有前景的肺癌无创伤诊断与监护方法。

It is a promising method for lung cancer diagnosing by measuring 22 kinds of volatile organic compounds ( VOCs ) in the exhalent breath , such as styrene , decane , n-undecane .

鱼腥草素中间体&2-十一烷酮的气固催化法合成研究

Study on Preparation of 2-Undecanone by Gas-Solid Catalysis

气固催化法制备合成鱼腥草素中间体2-十一烷酮

Preparation of 2-Undecanone by Gas-Solid Catalysis

2-十一烷酮，又叫甲壬酮，是合成鱼腥草素的关键中间体，也用于有机合成和香料等精细化工行业。

2-undecanone , also called methyl-n-nonyl ketone , is a key intermediate to synthesize houttuynium , and 2-undecanone also can be used in organic synthesis and production of flavor .

将十一烷和荧蒽分别注入溶胶凝胶法涂渍的聚二甲基硅氧烷气相色谱毛细管柱和传统的聚二甲基硅氧烷毛细管柱并测量柱效率。

On a solgelcoated poly ( dimethylsiloxane )( PDMS ) capillary column and a conventional PDMS capillary column the probes undecane and fluoranthene were injected and the column efficiency was measured .

选用正十一烷酸为内标，采用毛细管气相色谱法测定酱油中的乙酰丙酸，样品回收率在83.4%～91.2%之间，标准线性关系良好，样品测定的变异系数小。

A simple and rapid method for the determination of laevulinic acid in soy sauce was developed . Selecting undecanoic acid as an internal standard , the average recovery rate was from 83.4 % to 91.2 % , and its relative standard deviation was 1.60 % .