摘要
酯化衍生气相色谱新法测定苯甲酸与山梨酸胡家元（四川大学化学系成都６１００６４）１前言苯甲酸、山梨酸广泛用作各种食品、饮料的防腐剂，文献￣［１］报道的允许用量分别在２．５ｇ／ｋｇ和１．５～２．０ｇ／ｋｇ以下。用气相色谱法测定苯甲酸与山梨酸已有多种方法￣...
n this paper, it is described that tetramethyl ammonium saIts of sorbic,benzoic and phenylacetic acids reactwith 1-iedobutane directly in N,N-dimethylformamide solution to forrn butyl esters of the corresponding acids. The butyl esters can be well separated by gas chron1atography on a column packed with 5%SE-30/102 silanizedwhite support.This methed has been used for the determination of benzoic and sorbic acids in ffors and drinks。The analysis is simple,fast and accurate.
出处
《色谱》
CAS
CSCD
北大核心
1994年第3期215-216,共2页
Chinese Journal of Chromatography
关键词
苯甲酸
己二烯酸
气相色谱
gas chromatography,benzoic acid, sorbic acid,derivatization,beverage
