Citation: Chun Sheng LIU, Jia Rui GUAN, Mao Sun LU, Chang Tai YAN. DETERMINATION OF VOLATILE PHENOLS IN CHINESE LIQUORS BY GC-MS[J]. Chinese Chemical Letters, ;1990, 1(2): 187-190. shu

DETERMINATION OF VOLATILE PHENOLS IN CHINESE LIQUORS BY GC-MS

Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050, China

Received Date: 28 March 1990

A new method for determining volatile phenols in Chinese liquors is proposed.Phenols are sorbed on a macroporous anion-exchange resin after the liquors were brought to a pH value of 12.5,then eluted with HCl-acetone,extracted with methylene dichloride and concentrated to a suitable concentration for derivatization with pentafluorobenzyl bromide (PFB).The PFB derivatives of phenols were successfully separated by gas chromatography on a 30 m SE-54 elastic glass capillary column and detected with Ni-63 electron capture detec-tor.The characteristics of this method are:high sensitivity,low interference and 95% average recovery of phenols.The method was used successfully in the determination of vola-tile phenols in eight kinds of Chinese liquors.
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