1.Polychlorinated biphenyls (PCBs) fall into the category of halogenated aromatic compounds (HACs) or dioxin-like compounds (DLCs) and are highly lipophilic environmental contaminants.
多氯联苯(polychlorinated biphenyls,PCBs)属于卤代芳香化合物(halogenated aromatic compounds,HACs)或二?f英类化合物(dioxin-like compounds,DLCs)的范畴。
2.SYNTHESIS OF POLYSUBSTITUTED AROMATIC COMPOUNDS:2 THE DIELS-ALDER REACTION OF 1-CHLORO SUBSTITUTED DIENES WITH DIMETHYL ACETYLENEDICARBOXYLATE
SYNTHESIS OF POLYSUBSTITUTED AROMATIC COMPOUNDS：2．THE DIELS－ALDER REACTION OF 1－CHLORO SUBSTITUTED DIENES WITH DIMETHYL ACETYLENEDICARBOXYLATE
3.In this paper, 397 aromatic rice varieties grew in different regions in China were collected and compared with three world famous aromatic rice — Basmati 370, KDML 105 and Delia to exploit new material(s) with different heredity of aromatic characteristic.
本文从我国地方香稻品种入手,收集我国不同区域的397份香稻品种,与KDML105、Basmati370等国际著名香稻进行比较,寻找具有不同香味遗传背景的材料,并对其遗传模式进行研究,结果如下:
4.The results showed that aromatic compounds from grape varieties and their wines at different stages had different evolutionsIn grapes, 43, 47 and 51 aromatic compounds were found in Cabernet Sauvignon, Merlot, Cabernet Gernischt respectively. There were 81 kinds of aromatic components in Chardonnay. They belonged to olefinic aldehydes, aldehydes, ketones, higher saturated and unsaturated fatty acids, esters, phenols and other chemical groups.
主要结果如下：检测出红色品种赤霞珠、梅尔诺、蛇龙珠果实挥发性化合物分别是43、47和51种，白色品种霞多丽果实检测出81种，属于烯醛类、醛类、酮类、高级饱和、不饱和脂肪酸类化合物、脂肪酸酯和酚类化合物等。
5.The aromatic electrophilic substitution reaction was studied using NMR for the first time.On the base of substituents effects on the benzene,the orientation effect and reactivity was analysised quantitatively.This method may mostly predict the aromatic electrophilic substitution reaction.
首次采用NMR研究芳基亲电取代反应.依据取代基对苯的影响，定量分析了定位效应和反应活性.此法对芳基亲电取代反应有一定的预见性.
6.The aromaticity and ratio of protonized aromatic carbon to non-protonized aromatic carbon of Ruqigou coal were determined by ~(13)C NMRutilizing magic angle spinning,cross polarization and dipolar dephasingtechniques.
利用魔角自旋、交叉极化和偶极去相技术~(13)C 核磁共振法测定了汝箕沟煤——测定粘结指数专用无烟煤的芳碳率和质子化与非质子化芳碳的比例。
7.The results indicated that the factors discussed above have certain effects on Ni/Al2O3. At the same time, the industrial appliedstudies on Ni/Al2O3 were carried out with 200 and 260 solvent oil. The industrial test results showed these catalysts with high aromatic hydrogenation and high sulfur tolerance can produce low aromatic environmental solvent oil with good quality under abirritant conditions.
同时，采用200~#和260~#溶剂油为原料，对催化剂进行了应用研究，工业试验表明，该催化剂具有高效芳烃加氢活性和高抗硫性能，在较缓和的工业操作条件下，能生产出质量合格的低芳烃环保型溶剂油，达到了工业生产的要求。
8.Abstract: The aromatic electrophilic substitution reaction was studied using NMR for the first time.On the base of substituents effects on the benzene,the orientation effect and reactivity was analysised quantitatively.This method may mostly predict the aromatic electrophilic substitution reaction.
文摘:首次采用NMR研究芳基亲电取代反应.依据取代基对苯的影响，定量分析了定位效应和反应活性.此法对芳基亲电取代反应有一定的预见性.
9.Aromatic polyamide nanofiltration membrane is prepared by the solution of aromatic polyamide fiber via immersion precipitation phase inversion process.
摘要以聚间苯二甲酰间苯二胺为原料，采用相转化法制备了芳香聚酰胺纳滤膜。
10.Determination of 16 Polycyclic Aromatic Hydrocarbons by Liquid Chromatography with Solid Phase Extraction(II)——Determination of US Environmental Protection Agency 16 Polycyclic Aromatic Hydrocarbons in Water
固相萃取液相色谱测定水中16个多环芳烃(II)——水中USEPA16个多环芳烃的测定
