近jin年nian來lai,紡fang織zhi品pin的de生sheng態tai要yao求qiu備bei受shou關guan注zhu,檢jian測ce要yao求qiu越yue來lai越yue嚴yan格ge,對dui檢jian測ce能neng力li的de要yao求qiu也ye在zai提ti高gao。有you害hai物wu質zhi檢jian測ce過guo程cheng中zhong萃cui取qu是shi主zhu要yao過guo程cheng,目mu前qian常chang用yong的de溶rong劑ji萃cui取qu技ji術shu有you索suo氏shi萃cui取qu、超聲萃取、微波萃取和加速溶劑萃取等,新型萃取技術有固相萃取、固相微萃取和液相微萃取等,而基於各種萃取技術而形成的多元結合萃取技術包括索氏-固相萃取、加速溶劑-固相萃取和超聲-固相微萃取等。 本文對應用在紡織品有害物質分析中的萃取技術進行綜述,並對更加環保生態的萃取技術進行了展望。 2 萃取技術在紡織品有害物質檢測中的應用 2.1 溶劑萃取技術 溶劑萃取技術如索氏萃取、超聲萃取等在紡織品有害物質檢測中占重要的地位。 索(suo)氏(shi)萃(cui)取(qu)是(shi)簡(jian)單(dan)實(shi)用(yong)的(de)經(jing)典(dian)萃(cui)取(qu)技(ji)術(shu),張(zhang)偉(wei)亞(ya)等(deng)采(cai)用(yong)索(suo)氏(shi)萃(cui)取(qu)法(fa)提(ti)取(qu)紡(fang)織(zhi)品(pin)中(zhong)殘(can)留(liu)的(de)烷(wan)基(ji)酚(fen)及(ji)烷(wan)基(ji)酚(fen)聚(ju)氧(yang)乙(yi)烯(xi)醚(mi),回(hui)收(shou)率(lv)符(fu)合(he)要(yao)求(qiu)。胡(hu)勇(yong)傑(jie)等(deng)采(cai)用(yong)索(suo)氏(shi)萃(cui)取(qu)法(fa)建(jian)立(li)了(le)測(ce)定(ding)生(sheng)態(tai)紡(fang)織(zhi)品(pin)中(zhong)含(han)氯(lv)有(you)機(ji)載(zai)體(ti)含(han)量(liang)的(de)方(fang)法(fa)。 erchaoshengcuiqushishiyongzuiduodecuiqujishu,duozhongyouhaiwuzhijunkeyongchaoshengcuiqujinxingqianchuli。chaoshengcuiqujishushiyourongjicuiqujishuyuchaoshengbojishujiehexingchengdecuiqujishu,chaoshengchangdecunzaitigaolerongjicuiqudexiaolv。chenglijun、樊苑牧、劉慧婷都采用超聲萃取法分別提取了紡織品中有機錫化合物、含氯酚及鄰苯基苯酚、全氟化合物,檢出限和回收率都在標準要求之下。紡織品中殺蟲劑的提取主要采用超聲萃取法,張翔、王明泰采用超聲萃取法提取紡織品中的農藥殘留物。 微(wei)波(bo)萃(cui)取(qu)法(fa)是(shi)微(wei)波(bo)技(ji)術(shu)與(yu)萃(cui)取(qu)技(ji)術(shu)相(xiang)結(jie)合(he)產(chan)生(sheng)的(de)技(ji)術(shu),在(zai)萃(cui)取(qu)過(guo)程(cheng)中(zhong)用(yong)微(wei)波(bo)來(lai)提(ti)高(gao)萃(cui)取(qu)效(xiao)率(lv)。王(wang)成(cheng)雲(yun)等(deng)采(cai)用(yong)微(wei)波(bo)輔(fu)助(zhu)萃(cui)取(qu)法(fa)提(ti)取(qu)紡(fang)織(zhi)品(pin)中(zhong)殘(can)留(liu)的(de)辛(xin)基(ji)酚(fen)、壬基酚、辛基酚聚氧乙烯醚、renjifenjuyangyiximi,huishoulvhengao。shaochaoyingdengjianlileweibofuzhucuiquduoxiulianbenmileizuranjidefangfa。tongguoweibofuzhucuiquzhengjiaoshiyan,quedingleweibocuiqutiaojian,fangfadejianchuxiandi,biaozhunjiaruhuishoulvgao,shiyongyufangzhipinzhonghenliangduo
溴聯苯(醚)類阻燃劑的檢測分析。 加速溶劑萃取技術在1995年由Richter等deng提ti出chu的de一yi種zhong全quan新xin的de萃cui取qu方fang法fa,采cai用yong常chang規gui溶rong劑ji,在zai較jiao高gao的de溫wen度du和he較jiao大da的de壓ya力li下xia用yong溶rong劑ji萃cui取qu固gu體ti或huo半ban固gu體ti的de新xin穎ying的de樣yang品pin前qian處chu理li方fang法fa,利li用yong升sheng高gao的de溫wen度du和he壓ya力li,增zeng加jia物wu質zhi溶rong解jie度du和he溶rong質zhi擴kuo散san效xiao率lv,提ti高gao萃cui取qu效xiao率lv。於yu徊huai萍ping等deng針zhen對dui國guo際ji對dui紡fang織zhi品pin中zhong全quan氟fu辛xin磺huang酸suan和he全quan氟fu辛xin酸suan的de限xian量liang要yao求qiu,采cai用yong加jia速su溶rong劑ji萃cui取qu法fa提ti取qu樣yang品pin中zhong全quan氟fu辛xin磺huang酸suan和he全quan氟fu辛xin酸suan,該gai方fang法fa的de最zui低di檢jian出chu限xian、線性範圍和方法回收率均能滿足要求。 2.2 新型萃取技術 溶劑萃取技術需要使用大量對人體和環境有毒、有害的有機溶劑。雖然溶劑萃取技術仍起著重要的作用,但開發省時高效、有機溶劑耗用量少是萃取技術不斷發展的要求之一,近年來發展起來了多種新型樣品萃取技術,例如固相萃取、固相微萃取、液相微萃取等。 固gu相xiang萃cui取qu是shi一yi種zhong基ji於yu液ye一yi固gu分fen離li萃cui取qu的de試shi樣yang預yu處chu理li技ji術shu,固gu相xiang萃cui取qu的de過guo程cheng實shi質zhi上shang是shi柱zhu色se譜pu分fen離li過guo程cheng,是shi利li用yong固gu體ti吸xi附fu劑ji對dui液ye體ti樣yang品pin中zhong目mu標biao化hua合he物wu與yu基ji質zhi和he幹gan擾rao化hua合he物wu吸xi附fu能neng力li的de差cha異yi,來lai分fen離li和he富fu集ji目mu標biao化hua合he物wu的de。馬ma強qiang等deng建jian立li了le紡fang織zhi品pin烷wan基ji酚fen遷qian移yi量liang的de分fen析xi方fang法fa。紡fang織zhi品pin浸jin泡pao液ye經jing固gu相xiang萃cui取qu柱zhu淨jing化hua後hou定ding量liang分fen析xi。牛niu增zeng元yuan等deng對dui紡fang織zhi品pin中zhong鄰lin苯ben二er甲jia酸suan酯zhi類lei環huan境jing激ji素su在zai人ren工gong汗han液ye中zhong的de遷qian移yi進jin行xing了le研yan究jiu,確que定ding了le用yong固gu相xiang萃cui取qu濃nong縮suo富fu集ji人ren工gong汗han液ye提ti取qu液ye中zhong的de鄰lin苯ben二er甲jia酸suan酯zhi類lei化hua合he物wu的de最zui佳jia條tiao件jian。 固相微萃取是由加拿大Warterlee大學的Pawliszy等於1990年首創,它是一種集萃取、濃縮、解吸、進樣於一體的樣品預處理方法。SPME的理論是基於待分析物在樣品基質和萃取介質(塗層)zhijiandefenpeixishubutong,zaishiyongmouzhongyetigaofenzitucengjinxingcuiqushi,zaicuiqupinghengzhuangtaixiahecuiquqiandaifenxiwudeliangyingbaochibubian,dangcuiqutucengquedinghou,tucengxifudedaifenxiwudeliangyuyangpinzhonggaiwuzhidechushinongduzhijianchengxianxingguanxi,zheshiyingyongSPME進行定量分析的理論基礎。其中,頂空固相微萃取法於測定高揮發性物質;直接固相微萃取法適用於測定低揮發性物質。張卓昱等、高麗榮等、聶鳳明等采用頂空固相微萃取測定紡織品中揮發性有機物(VOCs)的分析方法。優化了SPME的萃取條件,包括萃取頭的選擇、平衡時間、萃取時間、萃取溫度、頂空體積、離子強度、攪拌速度、解吸溫度和時間,符合紡織品中痕量VOCs的(de)快(kuai)速(su)分(fen)析(xi)要(yao)求(qiu)。而(er)劉(liu)瑛(ying)等(deng)采(cai)用(yong)固(gu)相(xiang)微(wei)萃(cui)取(qu)頂(ding)空(kong)進(jin)樣(yang)技(ji)術(shu)和(he)氣(qi)相(xiang)色(se)譜(pu)分(fen)析(xi)紡(fang)織(zhi)品(pin)中(zhong)的(de)異(yi)常(chang)氣(qi)味(wei)。汪(wang)麗(li)等(deng)采(cai)用(yong)固(gu)相(xiang)微(wei)萃(cui)取(qu)吸(xi)附(fu)富(fu)集(ji)紡(fang)織(zhi)品(pin)中(zhong)有(you)機(ji)磷(lin)農(nong)藥(yao),在(zai)氣(qi)相(xiang)色(se)譜(pu)-質譜進樣口熱解吸後進行定性定量檢測。可適用於生態紡織品中物質的快速檢測。 液相微萃取最早是由Jeannot等於1996niantichuyizhongxinxingdeshuiyangyuchulijishu。zhezhongjishujieheleyexiangcuiquheguxiangcuiquyoudian,jinshiyongweishengjishenzhinashengjideyoujirongjijinxingcuiqu,shiyinglexiandaifenxikexueweixinghuafazhandeyaoqiu,shuyuhuanjingyouhaoxingde“綠色”分fen析xi技ji術shu。該gai技ji術shu基ji本ben原yuan理li是shi建jian立li在zai樣yang品pin與yu微wei升sheng級ji甚shen至zhi納na升sheng級ji的de萃cui取qu溶rong劑ji之zhi間jian的de分fen配pei平ping衡heng基ji礎chu上shang的de,即ji采cai用yong微wei滴di溶rong劑ji置zhi於yu被bei攪jiao拌ban或huo流liu動dong的de溶rong液ye中zhong,從cong而er實shi現xian溶rong質zhi的de微wei萃cui取qu。液ye相xiang微wei萃cui取qu包bao括kuo直zhi接jie浸jin沒mei式shi液ye相xiang微wei萃cui取qu,頂ding空kong液ye相xiang微wei萃cui取qu中zhong空kong纖xian維wei膜mo液ye相xiang微wei萃cui取qu以yi及ji流liu動dong液ye相xiang微wei萃cui取qu。張zhang慧hui等deng采cai用yong以yi離li子zi液ye體ti為wei萃cui取qu劑ji的de液ye相xiang微wei萃cui取qu,對dui紡fang織zhi品pin檢jian測ce國guo家jia標biao準zhun方fang法fa(GB/T 17592-2006)中zhong紡fang織zhi品pin樣yang品pin前qian處chu理li方fang法fa進jin行xing了le改gai進jin,建jian立li了le紡fang織zhi品pin中zhong源yuan於yu偶ou氮dan染ran料liao的de芳fang香xiang胺an的de提ti取qu新xin方fang法fa。比bi較jiao了le直zhi接jie浸jin入ru式shi微wei萃cui取qu和he溶rong劑ji棒bang微wei萃cui取qu模mo式shi的de萃cui取qu效xiao果guo,確que定ding以yi溶rong劑ji棒bang微wei萃cui取qu為wei微wei萃cui取qu模mo式shi。並bing優you化hua了le液ye相xiang微wei萃cui取qu條tiao件jian與yu紡fang織zhi品pin檢jian測ce國guo家jia標biao準zhun方fang法fa相xiang比bi,該gai方fang法fa簡jian單dan、快速,並顯示了較好的富集效果和高的回收率。 2.3 多元萃取技術 gezhongcuiqujishudouyouzhegezideyoudianhequedian,erbutongdecuiqujishulianheshiyong,jiaqianggeziyoudian,tigaocuiquxiaolv。lvchunhuadengheniuzengyuandengjianlilecaiyongsuoshicuiquheguxiangcuiquxiangjiehedefangfacedingfangzhipinzhongwanjifenjuyangyi
適用烯醚、鄰lin苯ben二er甲jia酸suan酯zhi類lei物wu質zhi,此ci兩liang種zhong萃cui取qu方fang法fa結jie合he能neng夠gou對dui紡fang織zhi品pin進jin行xing有you效xiao萃cui取qu,並bing富fu集ji濃nong縮suo,淨jing化hua雜za質zhi,該gai方fang法fa重zhong現xian性xing好hao,準zhun確que可ke靠kao。馬ma強qiang等deng采cai用yong加jia速su溶rong劑ji萃cui取qu和he固gu相xiang萃cui取qu相xiang結jie合he的de方fang法fa測ce定ding了le紡fang織zhi品pin中zhong烷wan基ji酚fen聚ju氧yang乙yi烯xi醚mi和he阻zu燃ran劑ji,采cai用yong此ci兩liang種zhong萃cui取qu方fang法fa結jie合he,檢jian測ce準zhun確que快kuai速su,且qie靈ling敏min度du高gao,可ke用yong於yu紡fang織zhi品pin的de實shi際ji檢jian驗yan工gong作zuo。陳chen軍jun等deng研yan究jiu了le超chao聲sheng和he固gu相xiang微wei萃cui取qu相xiang結jie合he提ti取qu紡fang織zhi品pin中zhong的de遊you離li甲jia醛quan和he揮hui發fa性xing有you機ji化hua合he物wu的de測ce試shi方fang法fa。該gai方fang法fa檢jian出chu限xian低di。回hui收shou率lv高gao。 2.4 展望 目(mu)前(qian),已(yi)有(you)很(hen)多(duo)種(zhong)萃(cui)取(qu)技(ji)術(shu)應(ying)用(yong)到(dao)紡(fang)織(zhi)品(pin)有(you)害(hai)物(wu)質(zhi)的(de)檢(jian)測(ce)分(fen)析(xi)中(zhong),但(dan)還(hai)有(you)很(hen)多(duo)生(sheng)態(tai)環(huan)保(bao)的(de)萃(cui)取(qu)技(ji)術(shu)沒(mei)有(you)應(ying)用(yong)到(dao)紡(fang)織(zhi)品(pin)的(de)有(you)害(hai)物(wu)質(zhi)檢(jian)測(ce)中(zhong),例(li)如(ru)濁(zhuo)點(dian)萃(cui)取(qu)。濁(zhuo)點(dian)萃(cui)取(qu)法(fa)是(shi)近(jin)年(nian)來(lai)出(chu)現(xian)的(de)一(yi)種(zhong)新(xin)興(xing)的(de)液(ye)液(ye)萃(cui)取(qu)技(ji)術(shu),通(tong)過(guo)改(gai)變(bian)實(shi)驗(yan)參(can)數(shu)如(ru)溶(rong)液(ye)的(de)pH值、離子強度、溫度等引發相分離,將疏水性物質與親水性物質分離。主要的優點在於它不使用有毒、有(you)害(hai)的(de)有(you)機(ji)溶(rong)劑(ji),適(shi)應(ying)了(le)綠(lv)色(se)分(fen)析(xi)技(ji)術(shu)發(fa)展(zhan)的(de)需(xu)要(yao)。目(mu)前(qian)已(yi)廣(guang)泛(fan)的(de)應(ying)用(yong)於(yu)金(jin)屬(shu)離(li)子(zi)的(de)痕(hen)量(liang)富(fu)集(ji)。在(zai)紡(fang)織(zhi)品(pin)的(de)重(zhong)金(jin)屬(shu)測(ce)試(shi)中(zhong),采(cai)用(yong)濁(zhuo)點(dian)萃(cui)取(qu)富(fu)集(ji)到(dao)一(yi)定(ding)濃(nong)度(du),可(ke)以(yi)增(zeng)加(jia)檢(jian)測(ce)的(de)穩(wen)定(ding)性(xing)。 3 結語 萃取技術是紡織品有害物質檢測中的關鍵,隨著對紡織品有害物質的要求越來越嚴格和檢測的綠色化、生態化,快捷高效、有機溶劑耗用量少的萃取新技術將成為主流趨勢。
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