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	气相色谱-质谱法同时测定水果中9种保鲜剂的残留量; Simultaneous determination of nine preservatives in fruits using gas chromatography-mass spectrometry
	彭淑女 ; 王秋泉 ; 方兰兰 ; 郭善勇 ; 曾舟华 ; 林竹光
	2014-01-08
关键词	气相色谱-质谱 保鲜剂 水果 农药残留 gas chromatography-mass spectrometry(GC-MS) preservatives fruits pesticide residue
英文摘要	建立了采用气相色谱-质谱(gC-MS)同时测定水果中9种保鲜剂残留量的分析方法。水果样品用正己烷/乙酸乙酯(1/1,V/V)混合提取剂超声提取,经flOrISIl层析柱净化后用正己烷/乙酸乙酯(1/3,V/V)混合洗脱剂洗脱,以磷酸三苯脂(TPP)为内标物,采用gC-MS的全扫描方式(SCAn)和选择离子监测方式(SIM)对9种保鲜剂进行定性与定量分析。实验结果表明,9种保鲜剂的检出限(lOd)为0.10~2.16μg/kg,在50、100、200μg/kg添加水平下的回收率为75.3%~128%,相对标准偏差为1.57%~11.6%。本分析方法样品前处理简便,净化效果明显,在SIM谱图中分析目标物响应值大、灵敏度高,定量准确可靠,能够满足保鲜剂痕量残留的检测要求。; A gas chromatography-mass spectrometry(GC-MS)method was established for the simultaneous determination of nine typical preservatives(pyrimethanil,chlorothalonil,chlorpyrifos, triadimefon,thiabendazole,imazalil,myclobutanil,iprodione,prochloraz)in fruits.The fruit samples were subjected to ultrasonic extraction with hexane/ethyl acetate(1/1,v/v),and followed by purification using diatomite column chromatography with hexane/ethyl acetate(1/3,v/v)eluant.Qualitative and quantitative analysis of the nine preservatives were performed on the GC-MS at full-scan(SCAN)and selected ion monitoring(SIM)modes,in which triphenylphosphate was used as the internal standard.The detection limits obtained for the nine preservatives were ranged from0.10μg/kg to 2.16μg/kg.The average recoveries were in the range of 75.3%to 128% at the spiked levels of 50,100 and 200μg/kg with the relative standard deviations(RSDs)of 1.57% to 11.6%(n=5).The results showed that the developed method is sensitive and accurate for the determination of the nine preservatives in fruits.; 国家重点基础研究发展计划(“973”)项目(2009CB421605)
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/107021]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	彭淑女,王秋泉,方兰兰,等. 气相色谱-质谱法同时测定水果中9种保鲜剂的残留量, Simultaneous determination of nine preservatives in fruits using gas chromatography-mass spectrometry[J],2014.
APA	彭淑女,王秋泉,方兰兰,郭善勇,曾舟华,&林竹光.(2014).气相色谱-质谱法同时测定水果中9种保鲜剂的残留量..
MLA	彭淑女,et al."气相色谱-质谱法同时测定水果中9种保鲜剂的残留量".(2014).

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