摘要
采用50/30μm DVB/CAR/PDMS、75μm CAR/PDMS和65μm PDMS/DVB 3种固相微萃取头进行‘晚香’龙眼果实香气成分的GC-MS检测分析。结果表明,‘晚香’龙眼在3种萃取头上共检测出香气成分55种,以烯烃类和酯类化合物为主,其中含量较高的香气成分为罗勒烯异构体混合物、乙酸乙酯、酞酸二乙酯;50/30μm DVB/CAR/PDMS萃取头的敏感度最高,对烯烃类和酯类物质的萃取效果最好;75μm CAR/PDMS萃取头的吸附选择性广、检出物质最多;65μm PDMS/DVB的吸附量最低、检测出物质最少。50/30μm DVB/CAR/PDMS和75μm CAR/PDMS萃取头较适用于龙眼香气成分的萃取。
Aromatic compounds in Wanxiang longans were extracted by using three different solid phase microextraction （SPME） fibers, i. e. , 50/30 μm DVB/CAR/PDMS, 75 μm CAR/PDMS, and 65 /tm PDMS/ DVB, on GC-MS analysis for comparison. A total of 55 aromatics were detected. The main volatile components were alkenes and esters, including 1, 3, 6-Octatriene, 3, 7-dimethyl-, （Z）, ethyl acetate, and diethyl phthalate. The 50/30μm DVB/CAR/PDMS fiber showed a high sensitivity and the best extraction effect on alkenes and esters among three, while 75 μm CAR/PDMS had a wide absorption selectivity and the highest amounts of the aromatic compounds. The 65 μm PDMS/DVB fiber had the lowest absorption capacity, as well as the least amounts of the target substances for detection. It was concluded that either CAR/PDMS or DVB/CAR/PDMS could be adequately applied for the determination.
出处
《福建农业学报》
CAS
北大核心
2015年第12期1149-1154,共6页
Fujian Journal of Agricultural Sciences
基金
国家荔枝龙眼产业技术体系(CARS-33-05)
福建省科技计划项目--省属公益类科研院所基本专项(2014R1014-6)
农业部农业科研杰出人才及其创新团队(20120911)
农业部作物种质资源保护项目(2015NWB008)
农业部热带作物种质资源保护项目(2015RZZY-04)
