苯并

Automobile exhaust also found 32 species of polycyclic aromatic hydrocarbons, including 3,4 - benzopyrene and other carcinogenic substances.

汽车尾气中还发现有32种多环芳烃，包括3，4-苯并芘等致癌物质。

A novel fluorescent acrylamide monomer, N-(4-Benzooxazol-2-yl-phenyl)- acrylamide, was prepared from o-aminophenol, p-aminobenzoic acid and acryloyl chloride, with polyphosphoric acid as dehydrating agent and triethylamine as deacidification agent.

以邻氨基苯酚、对氨基苯甲酸和丙烯酰氯为原料，以多聚磷酸为脱水剂、三乙胺为脱酸剂，研制了一种新的荧光丙烯酰胺单体N-[4-（苯并噁唑-2-）苯基]丙烯酰胺。

The total yield and ee value of the enantiomer were 12% and 98.7% respectively. The total yield of the racemic one was 17%, 2.5 fold more than the previously publishable route.

整条路线具有高产率高ee值的特点，将会成为合成此类直型二氢苯并呋喃香豆素的流行方法。

The results showed that fipronil, which belongs to the benzyl pyrazole pesticides, had the highest toxicity to this insect of the tested insecticides.

结果表明：供试药剂中苯并吡唑类杀虫剂氟虫腈对细胸金针虫幼虫的毒力最高，LC50值为0.007613mg/kg土。

It is determined that the contents and distribution of pyrrolic compounds and dibenzothiophene are controlled by oil fraction during migration, which has potential significance in evaluating the oil migration and reservoir Filling direction.

杂环芳烃中的吡咯类化合物和二苯并噻吩具有显著的油气运移分馏效应，可以作为有效的油气运移与油藏充注方向的分子级示踪参数。

The Rhodococcus sp.H-412 screened by ourselves in the lab, which possessed the 4S desulfurization metabolic route, was chosen as the target. Conditions of its immobilization and application were main analyzed by using DBT as a model compound.

本文以实验室筛选的、符合4S脱硫代谢途径的Rhodococcus sp.H-412为研究对象，二苯并噻吩为生物催化脱硫模拟化合物，考察了脱硫菌Rhodococcus sp.H-412的固定化操作条件和使用条件。

This invention discloses super molecule plant layer 2-benzene group benzimidazole-5 sulfonic acid and its preparation method and application.

本发明提供了一种超分子插层2-苯基苯并咪唑-5-磺酸及其制备方法与用途。

Highly toxi c solvents benzene,tetrachloromethane,methanol were replaced by toluene,1,2-di c hloroethane,ethanol in the course of reaction and purification.

甲基 2 ，1，3 苯并噻二唑的溴化改在低毒性的 1，2 二氯乙烷中进行，革除了高毒性的四氯化碳。

Tetrahydrofolatecoenzyme,Benzimidazoline,One-carbontransfer,Mannichalkali,Tetrahydroisoquinoline,Tetrahydro-β-carboline

四氢叶酸辅酶，苯并咪唑烷，一碳转移，Mannich碱，四氢异喹啉，四氢-β-咔啉

The catalytic activity for the hydrogenation of tetralin was examined with a fixed-bed continuous-flow reactor operating at 4.0MPa. The sulfur tolerance was tested with a feed of 200μg/g sulfur in the form of 4, 6-dimethyldibenzothiophene.

以四氢萘加氢为探针反应，4，6-二甲基二苯并噻吩为硫源，在固定床反应器中考察了催化剂的活性和耐硫性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。