甲基汞的测定-气相色谱法

[](1963-),,,,,,,,(,350004)[]::,,,0115g/g:810%,0101g/ml,7517%8214%:,,[];;[]O65717+1[]A[]1004-8685(2007)07-1227-02StudyondeterminationofmethylmercuryinseafoodbygaschromatographyKeHua,LiuQiao,ZhengShen2xi,ChenKe2xing,LinJie(FuzhouCenterforDiseaseControlandPrevention,Fuzhou350004,China)[Abstract]Objective:Toestablishagaschromatographymethodfordeterminationofmethylmercuryinseafood1Methods:Methylmercuryinsamplewasseparatedthroughsaltingoutbysodiumchloride,lixiviatedbyhydrochloricacidandextractedbybenzene1Wemadeaddstandardrecoveryexperimentationbyuseseafoodasgroundsubstance,andaddstandardlevelwas0115g/g1Results:Inthismethod,relativestandarddeviationwas810%,detectionlimit0101g/ml,theaveragerecoveriesbe2tween7517%and8214%1Conclusion:Thismethodissimple,rapidandsensitive1Itissuitablefordailydeterminationofmeth2ylmercuryinseafood1[Keywords]Methylmercury;Gaschromatography;Seafood,,,95%,,,,,,,,1111Trace-GC2000(),ChromCard32-bit;:cp-sil24cB,25m0120mm0116m,210g/ml(),0108g/ml,(,),181211250170,50,1min,15/min170,1min,1010min;N2,210ml/min;N2,30ml/min;200;180;210l;5:1113110210g,(210mol/L)10ml,,10min,1h20min,210ml5min,,4000r/min10min,,2l2211,150,,170,,,170,,180,200,250300ECD(1306)722120077177ChineseJournalofHealthLaboratoryTechnology,Jul2007;Vol17No7©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(ng/ml)12513021241806424913356501161435613376561990348015364811223151001534499143076981324399104313,,,,,,500,,4506h,4502h,,,,,,,[][1]GB/T5009-20031()[S]1[2],,1[M].:,19901[3],,1[M]1:,19971(:2007-01-11)(1227)21212215ml/min,10:15:14:1,,1ml/min,25:1,,,125l,1l,5l,,2l5:1,2ml/min(),2l213210mol/L,,,,,,214,,,5ml9mol/L,7(35ml),21520406080ng/ml,Y=9134104+4189106X,r=019999,1080ng/ml216,0108g/ml,7010794g/ml,810%,20101g/ml,,,,7517%8214%,,11(n=6)(g/g)(g/g)(g/g)(%)01150112281130106011501159751701150111878160114011501239821401066011501166761901150111778103810%,0101g/ml,7517%8214%,,,[][1]GB/T17132-19971[S]1[2]1[M]1:,19951(:2007-04-23)603120077177ChineseJournalofHealthLaboratoryTechnology,Jul2007;Vol17No7©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.