芦荟大黄素1.5阶微分阳极溶出伏安法测定及电化学性质研究

电化学（中英文） ›› 2001, Vol. 7 ›› Issue (4): 487-493.

芦荟大黄素1.5阶微分阳极溶出伏安法测定及电化学性质研究

林新华,黄丽英,陈伟,罗红斌,邱彬,李春艳

福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004

收稿日期:2001-11-28 修回日期:2001-11-28 出版日期:2001-11-28 发布日期:2001-11-28

Study of Electrochemistry of Aloe-emodin and Determination of It with 1.5th Order Derivative Anodic Stripping Voltammetry

LIN Xin hua, HUANG Li ying,CHEN Wei, LUO Hong bin, QIU Bin, LI Chun yan

(Dept. of Pharmaceutical, Fujian Medical Univ., Fuzhou 350004,China

Received:2001-11-28 Revised:2001-11-28 Published:2001-11-28 Online:2001-11-28

摘要/Abstract

摘要： 研究了芦荟大黄素在以 0 .1mol/LHAc (pH 2 .89)为支持电解质 ,玻碳电极为工作电极的吸附伏安行为 .结果表明芦荟大黄素存在一个准可逆的双电子转移过程 ,其峰电流Ip 和峰电位Ep 与溶液 pH值有关 .同时还建立了用 1.5阶微分阳极溶出伏安法测定含量的新方法 .在 - 0 .80V(vs.SCE)电位下富集 ,可得一灵敏的微分阳极溶出峰 ,峰电位Ep 为 - 0 .38V ,峰电流Ip 与芦荟大黄素的浓度在 2 .0× 10 - 7～ 8.0× 10 - 6 mol/L范围内成线性关系 ,最低检出限为 1.0× 10 - 7mol/L .该法用于含有芦荟大黄素体系的测定 ,具有简便、快速、准确等优点

关键词: 芦荟大黄素, 伏安行为, 微分阳极溶出伏安法, 测定

Abstract: In 0.1 mol/L HAc solution(pH=2.89),the voltammetric behaviours of aloe emodin at a glassy carbon electode has been studied. One pair of current peak of the voltammogram may be attributed to a quasireversible two electron transfer of aloe emodin molecules at the glassy carbon electrode. A new method, the derivative anodic stripping voltammetry, for aloe emodin determination is described. The adsorptive potential of aloe emodin is -0.80V(vs. SCE),while its stripping potential is -0.38V(vs.SCE). The peak current is propotional to the concentration of aloe emodin over the range of 2.0×10 -7 ～8.0×10 -6 mol/L. The method is simple, rapid and reliable for aloe emodin analysis.

Key words: Aloe emodin, Voltammetry, Derivative anodic stripping voltammetry, Determination

中图分类号:

O657.1

林新华,黄丽英,陈伟,罗红斌,邱彬,李春艳. 芦荟大黄素1.5阶微分阳极溶出伏安法测定及电化学性质研究[J]. 电化学（中英文）, 2001, 7(4): 487-493.

LIN Xin hua, HUANG Li ying,CHEN Wei, LUO Hong bin, QIU Bin, LI Chun yan . Study of Electrochemistry of Aloe-emodin and Determination of It with 1.5th Order Derivative Anodic Stripping Voltammetry[J]. Journal of Electrochemistry, 2001, 7(4): 487-493.

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https://electrochem.xmu.edu.cn/CN/Y2001/V7/I4/487

参考文献

[1]　YeYibin,ZhangXiaohua,LiHan.Anthracencderivativesextracted,separatedandidentificatedfromaloe[J].JournalofChineseNationalFolkMedicine,1999,37:77. [2]　MiguelRB ,etal.Comparativeevaluationofaloeverainthemanagementofburnwoundsinguineapigs[J].PlastReconstrSurg,1988,81(3):386. [3]　DavisRH ,LeitnerMG .Topicalanti inflammatoryactivityofAloeveraasmeasuredearswelling[J].Jour naloftheAmericanPediatricMedicalAssociation,1987,77(11):610. [4]　GaunttCJ ,WoodHJ,McDanielHR ,etal.Aloepolymannoseenhancesanti coxsackievirusantibodytitresinmice[J].PhytotherRes,2000,14(4):261. [5]　YuanAxin,KangShuhua,TanLin,etal.ThestudyonthechemicalconstituentsofaloeveraL .varchinesis(Haw)Berg[J].ChineseTraditionalandHerbalDrugs,1994,25(7);339. [6]　GuWenxiang,ZuShuqin.CultivationandUtilizationofAloe[M ].Shanghai:ShanghaiSciencePopularitPress,1999.198. [7]　GuoQing,LuJin.HPLCdeterminationofanthraquinoneinradixpolygorimultifloriandradixpolygonimulti floripreparata[J].JournaofPharmaceuticalAnalysis,2000,20(5):326. [8]　ZongYuyin,YuMantang,ZhuZhiqing,etal.Micellarelectrokineticcapillarychromatographyseparationanddeterminationofchinesetraditionalmedicine severalrheumspecies[J].ActaPharmaceuticaSinica,1995,30(8):594. [9]　ZhouJihong,LiReishi,LiuZhihong,etal.HPTLCdeterminationofthreeanthraquinonederivativesofChi neserhubarbinplasma[J].JournalofPharmaceuticalAnalysis,1995,15(6):36. [10]　AnsonF .(translatedbyHuangWeizengetal).ElectrochemistryandElectro analyticalChemistry[M ].Bei jin:PekingUniversityPress,1983.14. [11]　LavironE .Adsorption,AutoinhibitionandAutocatalysisinPolarographyandinLinearPotentialSweepVoltammetry[J].J .Electroanal.Chem.,1974,52:355. [12]　BrodbentAD ,SommermannEF .Thereductionof9,10 anthaquinals.Part2.Polargraphyof2 hydroxy9,10 anthrahydroquinones[J].J .Chem.Soc.(B),1968:519. [13]　ZouHong,YuanZhoubin.Investigationonelectrochemicalbehaviorofemodinanditsapplication[J].ActaPharmaceuticaSinica,1997,32(4):310. [14]　GaoXiaoxia.PolarographicCatalysisWave[M ].Beijin:SciencePress,1991.