1、

Polycyclic aromatic hydrocarbons ( PAHs), a kind of POPs are ubiquitous in air, contributing more than 1/ 3 of the total carcinogenic chemicals, with the source of oil-leak, traffic emissions, environmental tobacco smoke, fuel-burning, cooking oil-fumes, and, so on.

多环芳烃(PAHs)是大气中广泛存在的一类持久性有机污染物,占自然界中致癌物质总量1/3以上,主要来源有石油泄漏、汽车尾气、环境烟草烟雾、燃料燃烧及烹调油烟等。

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2、

Analysis on Potential Development of C4 Hydrocarbons, Aromatic Hydrocarbon and Its Down Stream Products

我国C4烃和芳烃及其下游产品发展机会分析

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3、

There are still many difficulties awaiting for solution before aromatic method and substituted method becomeindustralization.

而芳化法和取代法要实现工业化仍有许多难题需要解决.

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4、

The applications of 2,6-NDA in preparation of new aromatic polyamides were also studied.

在此基础上,本文还研究了新型聚芳酰胺的合成以及2, 6- 萘二甲酸在其中的应用.

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5、

NMP can also be used as aromatic fibre , insulate pesticide, pigment and detergent, etc.

NMP可用于绝缘材料 、 农药 、 颜料及清洁剂等方面.

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7、

A study was carried out on aroma components of aromatic tobacco condensate with GC/ MS.

采用GC/MS技术对香料烟浸膏的香气物质进行了研究。

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8、

Consequently, they provide a theoretical basis for the application and development of aromatic tobacco seeds.

这就为我们开发应用香料烟种子提供了理论依据。

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9、

A Preliminary Analysis of Aromatic Tobacco Quality in Southern Anhui Province

皖南地区香料烟质量状况分析

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11、

Studies on aroma components of aromatic tobacco condensate Holly Smoke

香料烟浸膏香气物质成分研究

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12、

Studies on Extraction Conditions of Aromatic Tobacco Extract

香料烟浸膏提取工艺条件研究

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13、

Improvement of extraction method and the extraction conditions of aromatic tobacco extract were studied.

对烟草浸膏的提取工艺进行了改进,并对香料烟浸膏的提取条件进行研究。

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14、

Aromatic tobacco testing method

GB5992-1986香料烟检验方法

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15、

At the same time, the contents of aroma components were tested with 3 extraction methods of Aromatic tobacco condensate.

同时,对3种提取工艺条件下香料烟浸膏的香气成分含量进行了对比分析。

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16、

Effect of Soil Humidity on Aromatic Tobacco Root System Development and Activity

土壤湿度对香料烟根系发育和根系活力的影响

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18、

Study on the Relationship between Main Appearance Characters of Leaf and Chemical Compositions in Aromatic Tobacco

香料烟叶片主要外观性状与化学成分关系的研究

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19、

The targets of this method is benzene, toluene, xylene ( three isomeric), styrene. It sampling on carbon tube, solvent desorbed or indirect thermal desorption and acked column gas chromatography to determination of aromatic hydrocarbon.

该方法主要检测的目标化合物包括苯、甲苯、二甲苯(三种异构体)、苯乙烯,采用活性炭采样,并使用二硫化碳溶剂解吸或间接热解吸的方法,配合填充柱气相色谱法分析。

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20、

Molecular Recognition of a Novel Bridged Bis(β-cyclodextrin) Tethered with Aromatic Diamine for Dyes

一种新型芳香二胺桥联β-环糊精对染料的分子识别

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