气相色谱-三重四极杆质谱联用法测定茶叶中欧盟优控15种多环芳烃化合物

打开文本图片集

中图分类号TS272.7 文献标识码A文章编号 0517-6611（2025）14-0178-07doi：10.3969/j.issn.0517-6611.2025.14.036开放科学（资源服务）标识码（OSID）：

Determinationof 15Eu-controlld Polycyclic Aromatic Hydrocarbons inTea byGas Chromatography-triple Quadrupole Tandem Mass Spectrometry

YONG Xiao-jiao，PUFeng-lin，YI Xin et al（Sichuan Institute of Food Inspection，Chengdu，Sichuan610097）

AbstractObetie]Tostablishacompletegaschromatogaph-tripleuadupoleandemmasspectrotrymethodfosulaousdetermination of 15Eu -controlled polycyclic aromatic hydrocarbons in tea.Method]The tea samples were saponified，extracted withn-hexane， purifiedbyDV，ndtensujectedtotrogenbowingtooncentratetm.Tisexperientdoptedacobinatioofultipleteolgis toachievequaliatiendantitatiealsof5lyclicromaticrocarboncpoudsmong tultiompotsaatio singShimaduS--cpilyoaogapyo，uiplesposeongodefordataltiotealdd methodforquantiatiealysis.Result]Teliarcoelatioof5olylicromatichdrocarbncompoudsasstrongatocatios ranging from 4 to 200ng/mL ，the correlation coeffcients exceeded O.999，and the limit of quantitative （LOQ）was 2μg/kg . The average recovery rate from the negative tea matrix at 2 concentrations of 1O and 50μg/kg was 74.2%-109.0% ，the relative standard deviation （RSD） was 0.7%-9.5% （ n=6 ）. The detected content of polycyclic aromatic hydrocarbons in155 batches of commerciall available tea samples was 0-667.7μg/kg .[Conclusion]Thismethodhastheadvantagesof higheficiency，highprecision，highonvenience，highselectivityandstrong operability，whichcanefectivelyreducematrix interferenceandprovidetecnicalsupportforfuture teaqualityandsafetysupervision.

KeywordsTea;Polycyclicaromatichydrocarboncompounds;Multireactionmonitoringmode（MRM）;Gaschromatogaph-triplequadrupole mass spectrometry

多环芳烃（polycyclic aromatic hydrocarbons，简称PAHs）是一类具有潜在危害的有毒化学物质，具有致癌、致畸、致突变作用，其特征表现主要包含芳香稠环型和芳香非稠环型2种形式，目前环境中广泛存在，其来源主要分为天然源和人为源[1-3]。（剩余12074字）