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1.深圳信息职业技术学院 交通与环境学院,广东 深圳 518172
2.香港城市大学 海洋污染国家重点实验室,香港 999077
3.深圳海关食品检验检疫技术中心 深圳市食品安全检测技术研发重点实验室, 广东 深圳 518026
李 杨,博士,讲师,研究方向:多介质环境污染修复,E-mail:linziyi_ly@163.com
纸质出版日期:2024-12-15,
收稿日期:2024-04-25,
修回日期:2024-07-09,
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李静,麦艳玲,肖陈贵,沈金灿,李文涛,郭建宁,钟润生,李杨.ASE/UPLC-MS/MS测定海产品中17种海洋脂溶性藻毒素[J].分析测试学报,2024,43(12):1952-1958.
LI Jing,MAK Yim-ling,XIAO Chen-gui,SHEN Jin-can,LI Wen-tao,GUO Jian-ning,ZHONG Run-sheng,LI Yang.Determination of 17 Marine Lipophilic Phycotoxins in Seafood Using Accelerated Solvent Extraction Combined with Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(12):1952-1958.
李静,麦艳玲,肖陈贵,沈金灿,李文涛,郭建宁,钟润生,李杨.ASE/UPLC-MS/MS测定海产品中17种海洋脂溶性藻毒素[J].分析测试学报,2024,43(12):1952-1958. DOI: 10.12452/j.fxcsxb.24042502.
LI Jing,MAK Yim-ling,XIAO Chen-gui,SHEN Jin-can,LI Wen-tao,GUO Jian-ning,ZHONG Run-sheng,LI Yang.Determination of 17 Marine Lipophilic Phycotoxins in Seafood Using Accelerated Solvent Extraction Combined with Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(12):1952-1958. DOI: 10.12452/j.fxcsxb.24042502.
建立了快速溶剂萃取/超高效液相色谱-串联质谱(ASE/UPLC-MS/MS)同时检测17种海洋脂溶性藻毒素(MLPs)的方法。鱼贝类海产品采用甲醇在高温高压下进行快速萃取,再依次采用反相Agilent Bond Elut C
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(500 mg/6 mL)和Waters Sep-Pak(500 mg/6 mL)正相硅胶固相萃取小柱进行净化;以含有0.1%甲酸和2 mmol/L甲酸铵的95%乙腈和水为流动相,使用Phenomenex Kinetex C
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色谱柱(100 mm×2.1 mm,1.7 μm)进行分离,在电喷雾电离多反应监测模式下同时检测,17种MLPs在6 min内全部被洗脱并检测。17种MLPs的相关系数为0.994 9~0.999 9,定量下限为0.020~30 pg/g湿重(ww)。在6种海产品中,17种MLPs的加标回收率为67.3%~116%,相对标准偏差(RSD)不大于15%。采用该方法对采自我国南海的11个鱼类、21个甲壳动物、19个软体动物样品进行测定,共检出12种MLPs,总含量为316~20 300 pg/g ww,主要为大田软骨酸毒素(OA)、鳍藻毒素(DTXs)和虾夷扇贝毒素(YTXs)。该方法具有优良的准确度和精密度,满足实际海产品中17种MLPs的同时检测要求。
A method was established for the simultaneous detection of 17 marine lipophilic phycotoxins(MLPs) by ultrahigh performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) combined with accelerated solvent extraction(ASE),including azaspiracids(AZAs),brevetoxins(BTXs),ciguatoxins(CTXs),dinophysistoxins(DTXs),gymnodimine(GYM),okadaic acid(OA),spirolides(SPXs),pectenotoxins(PTXs) and yessotoxins(YTXs). Seafood was extracted by accelerated solvent extraction with methanol,and then purified by reverse phase(Agilent Bond Elut C
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,500 mg/6 mL) and normal phase solid phase(Waters Sep-Pak,500 mg/6 mL) extraction cartridges subsequently. Mobile phase was water and 95% acetonitrile(95∶5,volume ratio),both of which contained 0.1% formic acid and 2 mmol/L ammonium formate. A Phenomenex Kinetex C
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LC column(100 mm×2.1 mm,1.7 μm) was performed to separate the lipophilic phycotoxins in six minutes and then the target analytes were detec
ted by UPLC-MS/MS in multiple reaction monitoring mode. The correlation coefficients of standard curves were 0.994 9-0.999 9 and the method quantification limits of 17 MLPs ranged from 0.020 to 30 pg/g ww. The matrix-spiked recoveries of 17 MLPs ranged from 67.3% to 116% with the relative standard deviations below 15%. Twelve lipophilic phycotoxins were detected in seafood from South China Sea,with the total concentration ranging from 316 to 20 300 pg/g ww. This method presents good sensitivity and precision,which can satisfy the requirements for simultaneous determination of 17 MLPs in seafood.
超高效液相色谱-串联质谱快速溶剂萃取固相萃取海洋脂溶性藻毒素海产品
ultrahigh performance liquid chromatography-tandem mass spectrometryaccelerated solvent extractionsolid phase extractionmarine lipophilic phycotoxinsseafood
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