Trace saturates in high purity aromatics by gc .

用气相色谱分析法测定高纯度芳烃中痕量。

We want to buy essential oils and aromatics , readymade garments .

我们要采购精油和芳烃，现成服装。

At low temperature , the lithium ( potassium ) reagent is made from substituted aromatics . Then , this reagent reacts with hexachloroethane to obtain chlorinated aromatic hydrocarbons with high conversion rate .

将取代芳烃在低温下制成锂（钾）试剂，再与六氯乙烷反应，可以得到较高转化率的氯代芳烃。

The oxidation coupling of methane , the partial oxidation of methane to syngas , and the conversion of methane to hydrogen and aromatics are very important academically and economically , for these routes providing ways to produce liquid fuel from natural gas rather than those from petroleum .

甲烷的氧化偶联、部分氧化制合成气、甲烷制氢和芳烃等的研究工作对于由天然气生产液体燃料及化工基本原料的石油化工战略转移具有非常重要的学术和经济意义。

Long chain alkyl benzenes is the product of cyclization-decarboxylation-aromatization of fatty acid , with the help of clay minerals catalytic effect , which comes from bacteria , seaseed and higher plant lipid ; or the reaction product of monocylic aromatics and fatty acid alkyl group under the same conditions .

长链烷基苯主要是细菌、藻类和高等植物类脂化合物中脂肪酸在粘土矿物催化下发生环化脱羧再芳构化或单环芳烃与脂肪酸烷基化反应形成的产物。