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毛细管电泳法测定奶粉中的镉、铅和铜 被引量：1

Capillary Electrophoresis Analyses of Lead,Cadmium and Copper in Milk Powder
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摘要 用毛细管区带电泳(CZE)法测定了奶粉中的镉、铅和铜,在10mmol/L苄胺,10mmol/Lα-羟基乙酸,pH=4.0的电泳介质中,3种离子在12min内得到了分离,用间接紫外吸收法在214nm处进行检测,以外标法定量。对样品进行5次测定,峰面积的RSD小于1.6%,回收率在97.8%～102.2%之间,方法简便、快速、灵敏度高、重现性好、测定成本低。 Capillaryzoneelectrophoresis(CZE)wasusedtodetermineLead,CadmiumandCopperinmilkpowder.Inthesolution(pH=4.0)containing10mmol/Lofbenzylamineand10mmol/Lofglycolicacid,3inonicsampleswereseparatedin12min,detectedat214nmbyindirectUVabsorption,andquantifiedexternally.Samplesweredetermined5timeswithRSDlowerthan1.6%and97.8%～102.2%recoverd.Theresultshowedthatthemethodwasconvenientandrapidwithhighsensitivity,goodreproductivityandlowcost.
作者 袁道强
机构地区 郑州轻工业学院食品与生物工程系
出处 《食品科学》 EI CAS CSCD 北大核心 2002年第1期111-114,共4页 Food Science
关键词 毛细管区带电泳 间接此外吸收法 镉 铅 铜 奶粉 测定 Capillary zone electrophoresis IndirectUV detection Cadmium Lead Copper
分类号 TS252.7 [轻工技术与工程—农产品加工及贮藏工程]
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参考文献6

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共引文献12

同被引文献21

  • 1Li Y,Jiang Y,Yan XP.On-line hyphenation of capillary electrophoresis with flame-heated furnace atomic absorption spectrometry for trace mercury speciation[J].Electrophoresis,2005,26(3):661-667.
  • 2Hernandez-Borges J,Cifuentes A,Garcia-Montelongo FJ,et al.Combining solid-phase microextraction and on-line preconcentration-capillary electrophoresis for sensitive analysis of pesticides in foods[J].Electrophoresis,2005,26(4-5):980-989.
  • 3Qin W,Li SF.Determination of chlorophenoxy acid herbicides by capillary electrophoresis with integrated potential gradient detection[J].Electrophoresis,2003,24(12-13):2174-2179.
  • 4Khrolenko M,Dzygiel P,Wieczorek P.Combination of supported liquid membrane and solid-phase extraction for sample pretreatment of triazine herbicides in juice prior to capillary electrophoresis determination[J].J Chromatogr A,2002,975(1):219-227.
  • 5Barron D,Jimenez-Lozano E,Bailac S,et al.Determination of difloxacin and sarafloxacin in chicken muscle using solid-phase extraction and capillary electrophoresis[J].J Chromatogr B Analyt Technol Biomed Life Sci,2002,767(2):313-319.
  • 6Stroka J, Dossi N, Anklam E.Determination of artificial sweetener sucralose by capillary electrophoresis[J].Food Addit Contam,2003,20(6):524-527.
  • 7Huang HY, Chiu CW, Sue SL, et al.Analysis of food colorants by capillary electrophoresis with large-volume sample stacking[J].J Chromatogr A,2003,995(1-2):29-36.
  • 8Kvasnicka F, Voldrich M.Determination of fumaric acid in apple juice by on-line coupled capillary isotachophoresis-capillary zone electrophoresis with UV detection[J].J Chromatogr A,2000,891(1):175-181.
  • 9Frazier RA, Inns EL, Dossi N, et al.Development of a capillary electrophoresis method for the simultaneous analysis of artificial sweeteners,preservatives and colours in soft drinks[J].J Chromatogr A,2000,876(1-2):213-220.
  • 10Maragos CM.Measurement of aflatoxins using capillary electrophoresis[J].Methods Mol Biol,2001,157:51-58.

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食品科学
2002年 第1期

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