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时间:2020-04-22
《高效液相色谱-荧光检测法测定贝类中15种多环芳烃-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第42卷第13期广州化工Vol_42No.132014年7月GuangzhouChemicalIndustryJu1.2014.-_I-.-L-'!同效液相色谱一荧光检测法测定贝类中15种多环芳烃孙秀梅,胡红美,梅光明,陈雪昌,郭远明(浙江省海洋水产研究所,农业部渔业环境及水产品质量监督检验测试中心,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316012)摘要:建立了高效液相色谱一程序荧光检测法同时测定贝类中15种多环芳烃的方法。通过液相色谱柱、荧光激发和发射波长等条件的优化,实现15种多环芳烃组分基线完全分离和荧光高灵敏度检测。在优化的实验条件下,检测
2、的15种多环芳烃中萘、苊和芴的检出限为0.5Ixg/kg,苯并[b]荧蒽、二苯并[a,h]蒽和苯并[g,h,i]茈的检出限为2.0Ixg/kg,其余化合物的检出限为1.0Ixs/kg;在检测的15种多环芳烃中,菲、葸、芘、苯并[a]蒽、崩、苯并[a]芘、茚并[1,2,3一cd]芘在0.001~0.5mg/L浓度范围,其余化合物在0.002~1.0mg/L浓度范围,呈良好的线性相关,相关系数r>0.995;当样品加标水平分别为2、10、100g/kg时,回收率在71.1%~98.4%,RSD<10%。该检测方法重现性高,检测灵敏度和准确度均满足分析要求。关键词:多环芳烃
3、;贝类;高效液相色谱;荧光法中图分类号:065文献标志码:A文章编号:1001—9677(2014)013—0123—04Determinationof15PolycyclicAromaticHydr0carb0nsinShellfishbyHPLC—-FLDSUNXiu—mei,HUHong—mei,MEIGuang—ming,CHENXue—chang,GUOYuan—ming(MarineFisheryInstituteofZhejiangProvince,FisheryEnvironmentandAquaticProductsQualitySupervisio
4、nTestingCenter,KeyLaboratoryofSustainableUtilizationofTechnologyResearchforFisheryResourceofZhejiangProvince,ZhejiangZhoushan316012,China)Abstract:Highperformanceliquidchromatography(HPLC)coupledtoafluorescencedetector(FLD)wasusedtosetupananalyticalprocedureforthequantificationof15EUpri
5、oritypolycyclicaromatichydrocarbons(PAHs)inaquaticproducts.Themethodrealizedthecompletebase—lineseparationof15PAHsandhighsensitiveflurescencedeterminationafteroptimizinganalyticalconditions,includingliquidchromatographicconditions,excitationandemissionwavelength.Undertheoptimizedconditi
6、ons,thedetectionlimitsofnaphthalene,acenaphtheneandfluorenewere0.5kg,thedetectionlimitsofbenzo(b)fluoranthene,dibenzo(a,h)anthraceneandbenzo(g,h,i)perylenewere2.0kg,thedetectionlimitsoftheotherswere1.0g/kg.The15PAHshadgoodlinearity(r>0.995),intherangeof0.001~0.5mg/L.Therecoveriesatthesp
7、ikedamountof2,10,and100g/kg,respectively,were71.1%~98.4%,andtheRSDswerelessthan10%.Themethodishighlysensitiveandaccurate.Itcanbeusedforthequalitycontrolof15PAHsinmanyaquaticproducts.Keywords:polycyclicaromatichydrocarbons;aquaticproducts;highperformanceliquidchromatography;fluo
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