摘要
采用固相微萃取技术测定浓缩苹果汁中有机磷农药残留量,对固相微萃取条件进行了选择。结果表明,本法的回收率在69.2%～103.2%之间,相对标准偏差在0.98%～4.8%之间,8种有机磷最低检出浓度为0.4～4.1ng/L。
A method for the determination of eight organophosphorus pesticide residues (OPs) in apple juice concentrate by fiber solid phase microextraction (SPME) coupled with gas chromatography was developed. The extraction conditions were optimized. The average recoveries and relative standard deviations of the pesticides were 69.2% to 103.2% and 0.98% to 4.8% respectively. The detection limits of OPs were in the range of 0.4 ng/L to 4.1 ng/L. In conclusion,this method is rapid,accurate and easy for determining pes...
出处
《食品科学》
EI
CAS
CSCD
北大核心
2009年第2期196-200,共5页
Food Science
关键词
固相微萃取
气相色谱
浓缩苹果汁
有机磷农药
残留
solid phase microextraction （SPME）
gas chromatography （GC）
apple juice concentrate
organophospho-rus pesticides
residues
