色烯

Amino-2-methylpropanol was used as the chemical modifying reagent of fatty acids to modify the carboxyl group into nitrogen-containing heterocycle which would effectively prevent the migration of carbon double bonds of the alkenyl in the electron impact source.

以2-氨基－2-甲基－丙醇为脂肪酸的化学修饰试剂，气相色谱－电子轰击质谱分析葵子油脂肪酸。2-氨基－2-甲基－丙醇将脂肪酸羧基修改为含氮杂环，使在EI源中避免了链烯基中碳碳双键的移动。

An investigation was made in winter wheat fields to study the effects of applying wheat synomones methyl salicylate and sulcatone (6-methy-5-hepten-2-one) on the dynamic changes of Macrosiphum avenae and its natural enemies Harmonia axyridis and Aphidius avenae.

研究了在田间使用小麦互益素－水杨酸甲酯和6-甲基－5-庚烯－2-酮对麦长管蚜及其主要天敌－异色瓢虫和燕麦蚜茧蜂的影响。

Components were identified which represented 85.1% of the total essential oil by the silica gel column separately.Conclusion 10 components were identified which included Bicyclo (6,3,0) undeca-dien-3-one, 5,5-dimethyl ect. of the essential oil from Angelica acutiloba Kitag were analyzed for the first time.

结果超临界CO2萃取物为黄棕色油状物，得率为0.9%，用GC-MS联用技术从中鉴定出亚油酸乙酯、5，5-二甲基-双环（6，3，0）-1，7-十一烯-3-酮等30种成分，占挥发油总含量65.66%；萃取物经硅胶柱色谱分离纯化，从中鉴定出十八酸乙酯等11种成分，占总含量的85.1%。

Components were identified which represented 65.66% of the total essential oil includding 9.12-octadecadienoic acid, ethyl ester and ect. 11 components were identified which represented 85.1% of the total essential oil by the silica gel column separately.conclusion 10 components were identified which included bicyclo (6,3,0) undeca-dien-3-one, 5,5-dimethyl ect.

结果超临界co2萃取物为黄棕色油状物，得率为0.9%，用gc-ms联用技术从中鉴定出亚油酸乙酯、5，5-二甲基-双环（6，3，0）-1，7-十一烯-3-酮等30种成分，占挥发油总含量65.66%；萃取物经硅胶柱色谱分离纯化，从中鉴定出十八酸乙酯等11种成分，占总含量的85.1%。

With the aid of the methyl acrylamide as an internal standard, acrylamide was derivatized through bromination and determined by GCIMS.

建立了油炸方便面中丙烯酰胺的气相色谱－质谱联用内标分析方法。

The existance of vesicles was demonstrated by negatively staining TEM, freeze-fracture TEM, bromphenol blue entrapment, and quasi-elastic lightscattering experiments.

应用电镜(负染色制样和冰冻复型制样)、凝胶色谱、DSC、激光光散射等手段，证实了十一烯酸钠与十烷基三甲基溴化铵的混合溶液，在摩尔组成比α＝9∶1--1∶9时经超声皆可制得单室囊泡。

The steroids of cholest 4 ene 3 one and cholestane 3,6 dion in Yisheng Capsules were determined by capillary gas chromatography. The results provide a reference to work out its quality standard.

采用毛细管气相色谱法测定了益肾胶囊中胆甾-4-烯-3-酮、胆甾-3，6-二酮的含量，为该制剂制度质量标准提供了参考依据。

The methods of determination of crotonaldehyde in various samples of the PVA producing line by gas chromatography and flame ionization detector are discussed in this paper.

探讨了采用气相色谱法，氢火焰离子化检测器测定聚乙烯醇生产过程各种有机物料中的丁烯醛含量的方法以及操作条件、内标校正因子的求法。

Adsorption isotherms of propane, butane, propane and liquified petroleum gas on the quartz beads were determined respectively by means of the method of vacuum weighing , and the relationship between the isosteric adsorption enthalpy change and adsorbance was also reported.

用石英玻璃微珠模拟了HP－1，HP－20M，HP－17毛细管色谱柱内壁，用真空重量法测定了丙烷、丁烷、丙烯、液化石油气样品在3种模拟毛细管内壁表面的吸附等温线，并计算了等量吸附热随吸附量的变化关系。

A reversed-phase high performance liquid chromatographic method was established for determination of isothiocyanates in human urine , which used the reaction of propyl isothiocyanate with 1,2-benzenedithiol as reference instead of the synthesis of 1,3-benzodithiole-2-thione.

省去合成1，3 苯二硫杂环五烯 2 硫酮这一步骤，直接用异硫氰酸丙基酯与1，2 苯二硫酚反应作标准，建立了尿液中异硫氰酸酯的反相高效液相色谱测定方法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。