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