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《氣相色譜-三重串聯(lián)四極桿質(zhì)譜法測定海洋沉積物中35種多環(huán)芳烴.pdf》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、第36卷第3期2017年6月海洋環(huán)境科學(xué)MARINEENVIRONMENTALSCIENCEV01.36No.3June2017氣相色譜-三重串聯(lián)四極桿質(zhì)譜法測定海洋沉積物中35種多環(huán)芳烴張玉鳳1,2,3,宋永剛2一,楊爽2?,田金2?,于彩芬2?,吳金浩2’3(1.中國海洋大學(xué)化學(xué)化工學(xué)院,山東青島266100;2.遼寧省海洋水產(chǎn)科學(xué)研究院,遼寧大連116023;3.遼寧省海洋環(huán)境監(jiān)測總站,遼寧大連116023)摘要:研究建立了氣相色譜一三重串聯(lián)四極桿質(zhì)譜測定海洋沉積物中多環(huán)芳烴的方法,采用同位素稀釋法對海洋沉積物中35種多環(huán)芳烴進(jìn)行了測定,并與氣相色譜質(zhì)譜方
2、法的檢測參數(shù)進(jìn)行比較。結(jié)果表明,該方法的儀器檢出限和定量限均優(yōu)于氣相色譜質(zhì)譜法,并具有更好的靈敏度和選擇性;35種多環(huán)芳烴的加標(biāo)回收率范圍為71%~105%,16種同位素替代內(nèi)標(biāo)平均回收率范圍為55%~101%;實(shí)驗(yàn)選取遼東灣表層海洋沉積物的實(shí)際樣品進(jìn)行測定,沉積物平行樣品相對標(biāo)準(zhǔn)偏差為2.2%~4.5%,樣品中多環(huán)芳烴單體組分含量在0.25X10“(干重)~30.1X10”(干重)之間。關(guān)鍵詞:氣相色譜一三重串聯(lián)四極桿質(zhì)譜;海洋沉積物;多環(huán)芳烴中圖分類號:P734;P736文獻(xiàn)標(biāo)識碼:A文章編號:1007-6336(2017)03-0468-06Analysi
3、sofpolycyclicaromatichydrocarbonsinmarinesedimentsamplesbygaschromatography-triplequadrupolemassspectrometryZHANGYu—fen91’2一。SONGYong.gan92?,YANGShuan92?,TIANJin2?,YUCai.fen2r.WUJin—ha02,3(1.CollegeofChemistryandChemicalengineering,OceanUniversityofChina,Qingdao266100,China;2.Liaonin
4、gOceanandFi8heriesScieneeResearchInstitute.Dalian116023,China;3.LiaoningOceanEnvironmentMonitoringStation,Dalian116023,China)Abstract:Amethodofgaschromatographycoupledwithtriplequadrupolemassspectrometry(GC—MS/MS)wasde—velopedforthedeterminationofpolycyclicaromatichydrocarbons(PAHs)i
5、nmarinesediments,andisotopedilutionwasintroducedtoquantificationofPAHs.Theresultswerecomparedwiththoseobtainedbygaschromatographyeou—pledtomassspectrometry(GC—MS).Themoreaccuratequantificationresults,andbetterselectivityandsensitivityofPAHswereobtainedwithGC—MS/MSthanGC.MS.Therecover
6、iesofspikedsamplesrangedfrom71%to105%,therecoveriesof16deuterated—PAHsrangedfrom55%to101%.TheGC—MS/MSmethodwasappliedtoanalyzingtherealmarinesedimentofLiaodongbay,andtheresuhsshowedthattherelativestandarddeviationofparallelsamplesrangedfrom2.2%to4.9%.a(chǎn)ndtheconcentrationofindividualPA
7、Hsinsedimentsamplesrangedfrom0.25×10“(dryweight)to30.1X10。(dryweight).Keywords:gaschromatography—triplequadrupolemassspectrometry(GC—MS/MS);marinesediment;polycyclicaro—matichydrocarbon收稿日期:2017_02-18。修訂日期:2017-03-01基金項(xiàng)目:遼寧省自然科學(xué)基金項(xiàng)目(201602409);海洋公益性行業(yè)科研專項(xiàng)(201505019);遼寧省海洋與漁業(yè)科研項(xiàng)目(2014
8、16);遼寧省國家大型儀