It is concluded that this method with good separating effect and high sensitivity is an idea one to detect the benzene compound in free air.
该方法分离效果好，灵敏度高，是测定大气中苯系物的理想方法。
Benzene, a chemical compound refined from crude oil, was found to cause leukemia in 1928 by two Italian doctors who detected the cancer in a worker exposed to benzene for five years.
苯是原油中提炼出来的化学合成物，1928年两个意大利医生检测到一名工人因长达五年的时间里暴露在苯环境中而患有癌症，他们发现苯可引发白血病。
"This is the first report that exposure to ethyl benzene, a compound present in crude oil, was associated with CHD," McCarver said, noting that more studies are needed to confirm the link.
McCarver说道，“这是对接触乙苯(原油中的一种化合物)与引发冠心病有关的第一份研究报告。”而事实上已不需要更多的研究来确认它们存在联系了。
The invention relates to a new fluorine-containing compounds 5,5,5- trifluoro -4-(benzene imidogen) ethyl valerate and its Synthesis method, belonging to organic compound synthesized technique realm.
本发明涉及一种新的含氟化合物5，5，5-三氟-4-（苯亚胺基）戊酸乙酯及其合成方法，属有机化合物合成工艺技术领域。
Objective:To estimate the feasibility of continuous target controlled infusion of isopropyl hydroxy-benzene in compound epidural block of epigastrium operation.
目的：评价持续靶控输注异丙酚复合硬膜外阻滞有用于上腹部手术的可行性。
Products such as methane chloride, gourmet powder, sorbierite, rutile, freon and benzene series were mostly produced in the east plant compound.
东厂区主要生产甲烷氯化物、味精、山梨醇、金红石、氟里昂和苯系物等产品。
Emulsifying system using alkyl sulfates, alkyl benzene sulphonate and so on as negative ion surfactant to compound with alkyl, phenolic group polyethylene and polyvinyl alcohol.
乳化体系采用烷基硫酸盐、烷基苯磺酸盐等阴离子乳化剂与烷基酚基聚氧乙烯醚、聚乙烯醇等非离子乳化剂进行复合使用。
The behavior of the sulphur-resistance of the hydrogenation of benzene as model chemical compound over pillared-layer clays(PLC) loaded with precious metals was studied.
以苯为模型化合物研究了负载贵金属的层柱分子筛（PLC）催化剂在苯加氢反应中的抗硫性能。
These organic pollutants included phenol, organosulfur compound, organic acid, organophosphorus pesticide, substituted benzene and multi-component organic pollutants.
这些成果包括酚类、有机硫化合物、有机酸、有机磷农药、苯系物、多组分有机污染物的分析测定。
The main influence factors of poisoned to death were patient'sage, household register, other organic compound poisoning, benzene and benzene homologue poisoning, illicit drug poisoning.
中毒死亡影响因素为患者年龄、户籍、其他有机物中毒、苯及苯系物中毒、毒品中毒。
Benzene (1825) Simplest aromatic hydrocarbon (see aromatic compound), parent substance of a large class of chemical compounds.
苯(1825)：最简单的芳香烃，是一大类化合物的母体。
Nitro-4-fluoro amino-benzene is a kind of aromatic fluorine compound, it is the material on synthetic fluoro-medicine.
硝基-4-氟苯胺是一种芳香族氟化物，也是合成氟医药的一种重要原料。
Nitro-4-fluoro amino-benzene is a kind of aromatic fluorine compound, it is the material on synthetic fluoro-medicine.
硝基-4-氟苯胺是一种芳香族氟化物，也是合成氟医药的一种重要原料。
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