广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
13期
123-125,201
,共4页
孙秀梅%胡红美%梅光明%陈雪昌%郭远明
孫秀梅%鬍紅美%梅光明%陳雪昌%郭遠明
손수매%호홍미%매광명%진설창%곽원명
多环芳烃%贝类%高效液相色谱%荧光法
多環芳烴%貝類%高效液相色譜%熒光法
다배방경%패류%고효액상색보%형광법
polycyclic aromatic hydrocarbons%aquatic products%high performance liquid chromatography%fluorescence detection
建立了高效液相色谱-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,检测的15种多环芳烃中萘、苊和芴的检出限为0.5μg/kg,苯并[b]荧蒽、二苯并[a,h]蒽和苯并[g,h,i]苝的检出限为2.0μg/kg,其余化合物的检出限为1.0μg/kg;在检测的15种多环芳烃中,菲、蒽、芘、苯并[a]蒽、崫、苯并[a]芘、茚并[1,2,3-cd]芘在0.001~0.5 mg/L浓度范围,其余化合物在0.002~1.0 mg/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、100μg/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。
建立瞭高效液相色譜-程序熒光檢測法同時測定貝類中15種多環芳烴的方法。通過液相色譜柱、熒光激髮和髮射波長等條件的優化,實現15種多環芳烴組分基線完全分離和熒光高靈敏度檢測。在優化的實驗條件下,檢測的15種多環芳烴中萘、苊和芴的檢齣限為0.5μg/kg,苯併[b]熒蒽、二苯併[a,h]蒽和苯併[g,h,i]苝的檢齣限為2.0μg/kg,其餘化閤物的檢齣限為1.0μg/kg;在檢測的15種多環芳烴中,菲、蒽、芘、苯併[a]蒽、崫、苯併[a]芘、茚併[1,2,3-cd]芘在0.001~0.5 mg/L濃度範圍,其餘化閤物在0.002~1.0 mg/L濃度範圍,呈良好的線性相關,相關繫數r>0.995;噹樣品加標水平分彆為2、10、100μg/kg時,迴收率在71.1%~98.4%, RSD<10%。該檢測方法重現性高,檢測靈敏度和準確度均滿足分析要求。
건립료고효액상색보-정서형광검측법동시측정패류중15충다배방경적방법。통과액상색보주、형광격발화발사파장등조건적우화,실현15충다배방경조분기선완전분리화형광고령민도검측。재우화적실험조건하,검측적15충다배방경중내、액화물적검출한위0.5μg/kg,분병[b]형은、이분병[a,h]은화분병[g,h,i]패적검출한위2.0μg/kg,기여화합물적검출한위1.0μg/kg;재검측적15충다배방경중,비、은、비、분병[a]은、굴、분병[a]비、인병[1,2,3-cd]비재0.001~0.5 mg/L농도범위,기여화합물재0.002~1.0 mg/L농도범위,정량호적선성상관,상관계수r>0.995;당양품가표수평분별위2、10、100μg/kg시,회수솔재71.1%~98.4%, RSD<10%。해검측방법중현성고,검측령민도화준학도균만족분석요구。
High performance liquid chromatography ( HPLC) coupled to a fluorescence detector ( FLD) was used to set up an analytical procedure for the quantification of 15 EU priority polycyclic aromatic hydrocarbons ( PAHs) in aquatic products.The method realized the complete base -line separation of 15 PAHs and high sensitive flurescence determination after optimizing analytical conditions , including liquid chromatographic conditions , excitation and emission wavelength.Under the optimized conditions , the detection limits of naphthalene , acenaphthene and fluorene were 0.5 μg/kg, the detection limits of benzo(b)fluoranthene, dibenzo(a,h)anthracene and benzo(g,h,i)perylene were 2.0 μg/kg, the detection limits of the others were 1.0 μg/kg.The 15 PAHs had good linearity ( r>0.995 ) , in the range of 0.001~0.5 mg/L.The recoveries at the spiked amount of 2, 10, and 100μg/kg, respectively, were 71.1%~98.4%, and the RSDs were less than 10%.The method is highly sensitive and accurate.It can be used for the quality control of 15 PAHs in many aquatic products.