消費品中重點化學物質(zhì)檢測方法 第7部分：多氯萘 編制說明

《消費品中重點化學物質(zhì)檢測方法第7部分：多氯萘（征 2 2 2 2 2 4 4 5 5 5 5 7 8 11 13 13 14 23 23 23 23 23 24 24 24 24結(jié)構(gòu)圖見圖1。多氯萘是一類基于萘環(huán)上的氫原子被氯原子所取代的化合物的總PCNs是共平面同類物，類似毒性最強的2,3,7,8-四氯代二苯并-對-二惡英（2,3,7,8-TCDD能夠產(chǎn)生EROD（ethoxyresorufino-deethylase）和AHH（arylhydrocarbonhydroxylase）等酶反應(yīng)，具有胚胎毒性、肝毒性、免疫毒性、現(xiàn)，毒性主要由五氯，六氯和七氯代同類物引起，其中六氯萘同類物中CN63，-71及HpCN73等具有類似于二惡英類的毒國外標準僅有水中PCN測試的國際標準《WaterqualityDeterminationofPCNs的分析方法目前尚沒有全球認可的國際標準方法，對于具有數(shù)據(jù)可比近年來人們在環(huán)境樣品中PCNs的分析上取得了很大的進展。2002年同位素體來說，在提取樣品之前加入13C標記的標準物質(zhì)，能夠校準在前處理過程中目夠達到10000以上，對復雜介質(zhì)中的目標化合物具有較好的選擇性，減少了復雜璃填充柱，柱上依次裝入干凈的玻璃棉，8g應(yīng)的硅藻土用量取決于所應(yīng)用的萃取池體積和所稱取的該樣品研磨后的6.3.1.3將提取液轉(zhuǎn)移至茄形瓶中，旋轉(zhuǎn)蒸發(fā)至近干，加入少量正己烷溶6.3.2.3.1取規(guī)格為20.0cm×8.0mm內(nèi)徑玻璃柱，自下至上依次填充：適在低分辨質(zhì)譜上，有機氯農(nóng)藥對PCNs有一5的分離效果也很好。綜合各種因素考慮，我們對兩種柱型D表1多氯萘標準溶液質(zhì)量濃度系列示例（單15151515151515151515151515151515151515151515151515各同類物兩個檢測離子的峰面積強度比應(yīng)與通過氯原子同位素豐度比推算1234567815根據(jù)GB/T27417-2017《化學分析方法確認和驗證指南》中的要求，校準曲123123N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.00N.D.N.D.N.D.N.D.N.D.N.D.007分析消費品中進樣內(nèi)標的峰面積應(yīng)為標準溶液中進樣內(nèi)標的峰面積的70%在色譜圖上，高度為基線振幅3倍以上的色譜峰視為有效峰。在峰的附近限1234567），為0.4~9.6%，實驗室間相對標準偏差為0~19.7%，提取內(nèi)標回收率范圍為416稱xi·（pg）（pg）·偏差RSD·心N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.N.D.///N.D.N.D.//N.D.N.D.//值xi·（pg）（pg）·偏差RSD·心N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.//值xi·（pg）（pg）·偏差RSD·心N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.//N.D.N.D.//N.D.N.D.//值xi·（pg）（pg）·偏差RSD·心N.D.N.D.N.D.///N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.N.D.N.D.///N.D.N.D.N.D.///N.D.N.D.N.D.//N.D.N.D.N.D.///值xi·（pg）（pg）·偏差RSD·心N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.N.D.///N.D.N.D.N.D.///值xi·（pg）（pg）·偏差RSD·心N.D.N.D.//N.D.N.D.//N.D.N.D.//N.D.N.D.N.D.///N.D.N.D.N.D.///N.D.N.D.//////////為指導企業(yè)進行有效的供應(yīng)鏈質(zhì)量管理和風險管理以及提高產(chǎn)品質(zhì)量提供可靠（2）為了貫徹實施本標準，建議本標準發(fā)布即實施，可以為消費品中苯酚Estimationandcongener-specificcharacterizationofpolychlorinatednaphthaFernandes,A.,Mortimer,D.,PolychlorinatedNaphthalenes(PinFood,andDietaryExposureintheGuo,L.,Ba,T.,Zheng,M.,2009.StudyofSourcesPolychlorinatedNaphthalenes.ProgressinChemistry21,Guo,L.,Zhang,B.,Xiao,K.,Zhang,Q.H.,Zheng,M.H.ofpolychlorinatednaphthalenesinsewagesludgeofurbanwastewatertreatmentOccurrenceandbiomagnificationofpolychlorinatednaphthalemono-orthoPCBsinLakeOntariofpolychlorinatednaphthalenesinairoverthegreatlakesandair-watergasexchangeHu,J.C.,Zheng,M.H.,Liu,WGao,L.R.,2012.CharacterizationofXiao,K.,2011a.LevelsandProfilesofUnintentionallyProducedPersistentIdentificationandcharacterizationoftheatmosphericemissionofpolychlorinatedLiu,G.R.,Zheng,M.H.,Du,B.,Nie,Z.Q.,Zhang,B.,Liu,W.B.,Li,C.,Hu,J.C.,2012b.AtmosphericemissionofpolychlorinatednaphthalEstimationandcharacterizationofpolychlorinCharacteringtheemissionofpolychlorinatednaphth劉國瑞,鄭明輝,胡吉成,