ethyl benzene

Methods:The residual solvents in ephedrine hydrochloride,which are benzene,toluene,ethyl benzene,m-xyleme,σ-xyleme and p-xyleme,were quantitatively determined by headspace GC on SUNELCOTM NUKOLTM column,with FID detecter,helium as the carries with 2.

结果:外标法测定盐酸麻黄碱原料中苯、甲苯、乙基苯、间二甲苯、对二甲苯、邻二甲苯(二甲苯苯系物BTEX)的残留量,分离度均大于1。

styrene dibromide

α,β-二溴乙基苯

styrene dichloride

α,β-二氯乙基苯

ethyl phenylbarbiturate

乙基苯基巴比土酸盐

phenylmethylcarbinyl acetate

乙酸苯仲乙(基)酯

2-hydroxy-2-phenyl acetophenone

２－羟基－２－苯基乙酰苯

phenyl acetophenone 2 -

羟基-2-苯基乙酰苯酚

methyl styryl carbinyl acetate

乙酸甲基苯乙烯基原酯

hoxyethyl phthalate

乙氧基乙基邻苯二酸盐

2,3,6-trichlorophenylacetic acid

２,３,６－三氯苯基乙酸

Phenobarbital diethylaminoethanol

苯巴比妥－二乙基氨乙醇

The Alkylation of Benzene With Ethanol Over Zeolite HZSM-5

HZSM-5沸石上苯与乙醇烷基化合成乙苯

methyl phenyl vinyl silicone rubber

甲基苯基乙烯基硅橡胶

Study on O-hydroxy by ethylation of diethyl carbonate and catechol

碳酸二乙酯乙基化邻苯二酚合成邻羟基苯乙醚

nitrophenyl diethyl phosphate

磷酸硝基苯基二乙酯

dimethyl phenyl carbinyl acetate

乙酸二甲基苯基原酯

butyl phthalybutyl glycollate

丁基苯二甲酰基羟乙酸

hydroxyphenethyl ester

氨基甲酸β－羟苯乙基酯

ethoxybenzoyl aminoquinoline

乙氧基苯甲酰氨基喹啉