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| 同位素稀释高分辨气相色谱-高分辨质谱法测定植物油中的氯代二苯并二噁英(PCDDs)、多氯代二苯并呋喃(PCDFs) | |
| 引用本文： | 张莉娜,郎春燕,李德豪,李晓明,殷旭东,牟靖芳.同位素稀释高分辨气相色谱-高分辨质谱法测定植物油中的氯代二苯并二噁英(PCDDs)、多氯代二苯并呋喃(PCDFs)[J].粮食储藏,2012,41(1):47-51. |
| 作者姓名： | 张莉娜 郎春燕 李德豪 李晓明 殷旭东 牟靖芳 |
| 作者单位： | 1. 成都理工大学 成都610059;广东石油化工学院 茂名525000;广东产品质量监督检验研究院 广州 528300 2. 成都理工大学 成都610059 3. 广东石油化工学院 茂名525000 4. 广东产品质量监督检验研究院 广州 528300 |
| 摘 要： | 植物油加标后依次经过浓硫酸磺化、多段混合硅胶柱和氧化铝柱净化,采用高分辨气相色谱/高分辨质谱同位素稀释法对其中的17种2,3,7,8-氯取代二噁英类化合物进行测定.实验结果表明,用该法分析植物油样品,PCDD/Fs提取内标的平均回收率为60％～109％,RSD＜8.10％,植物油样品平行四次的平均回收率为78.5％～100.3％,RSD为2.2％～8.4％,结果符合EPA1613的要求,证明应用该实验方法分析植物油中二噁美类化合物是准确可靠的. |
| 关 键 词： | 二噁英 植物油 高分辨气相色谱/高分辨质谱 |
DETERMINATION OF POLYCHLORINATED DIBENZO-P-DIOXINS AND POLYCHLORINATED DIBENZOFURANS IN VEGETABLE OIL BY ISOTOPE DILUTION HRGC/HRMS |
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| Zhang Lina , Lang Chunyan , Li Dehao , Li Xiaoming , Yin Xudong , Mu Jingfang.DETERMINATION OF POLYCHLORINATED DIBENZO-P-DIOXINS AND POLYCHLORINATED DIBENZOFURANS IN VEGETABLE OIL BY ISOTOPE DILUTION HRGC/HRMS[J].Grain Storage,2012,41(1):47-51. | |
| Authors: | Zhang Lina Lang Chunyan Li Dehao Li Xiaoming Yin Xudong Mu Jingfang |
| Institution: | 1 Chengdu University of Technology,Chengdu 610059)(2 Guangdong University of Petrochemical Technology,Maoming 525000)(3 Guangdong Testing Institute of Product Quality Supervision 528300) |
| Abstract: | A method was evaluated for the determination of seventeen kinds of 2,3,7,8-substitituted polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs) in vegetable oil sample by isotope dilution high resolution gas chromatography/high resolution mass spectrometry(HRGC/HRMS).Sample was cleaned up successively with sulfonation reaction,multi-layer silica gel column and alumina gel column.The results showed that the recoveries were in the range of 60%~109%,RSD<8.10%,average recoveries(n=4) of vegetable oil were 78.5%~100.3%,RSD was 2.2%~8.4%,the results conformed to EPA1613.It is proved that the experimental method for the analysis of PCDD/Fs in vegetable oil is reliable. |
| Keywords: | PCDD/Fs vegetable oil high resolution gas chromatography/high resolution mass spectrometry(HRGC/HRMS) |
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