蜂胶提取液中去铅的研究

本科生毕业设计（论文）(2014届)题目：离子交换树脂法去除蜂胶提取液中铅的研究1专业：环境科学1学生姓名：郑佳伟学号：103061301指导教师：何卫中职称：副教授1合作导师：职称：1完成时间：2014年4月25日1成绩1浙江师范大学行知学院本科毕业设计（论文）正文目录摘要................................................................................................................................1关键词............................................................................................................................1英文摘要..………………………………………………………………………………………...1英文关键词………………………………………………………………….…………………...11引言............................................................................................................................21.1蜂胶..................................................................................................................31.2蜂胶的功效......................................................................................................31.3蜂胶中铅的问题..............................................................................................41.4蜂胶中铅的去除..............................................................................................51.5DK110树脂.....................................................................................................72实验材料与方法........................................................................................................82.1材料..................................................................................................................82.2试剂..................................................................................................................82.3仪器与设备......................................................................................................92.4实验流程和方法..............................................................................................92.4.1黄酮浓度测定和黄酮标准曲线...................................................................92.4.2重金属铅离子浓度的测定和标准曲线.....................................................102.4.3DK110树脂法去除蜂胶提取液中的铅....................................................102.4.4DK110树脂的预处理...........................................................................................102.4.5DK110树脂基本性质测定方法.................................................................102.4.6不同pH下DK110树脂最大交换容量的测定…………………………...…102.4.7吸附流出曲线.........................................................................................................102.4.8实际环境下洗脱条件的初步确定....................................................................103结果与讨论..............................................................................................................123.1黄酮与铅的标准曲线....................................................................................123.2含铅乙醇水溶液吸附曲线............................................................................123.3吸附流出曲线................................................................................................133.4洗脱曲线........................................................................................................154结论与建议..............................................................................................................164.1结论………………………………………………………………………………….174.2建议………………………………………………………………………...17参考文献......................................................................................................................17致谢..........................................................................................................................19离子交换树脂法去除蜂胶提取液中铅的研究1离子交换树脂法去除蜂胶提取液中铅的研究行知学院环境科学101班：郑佳伟（10306130）指导老师：何卫中（副教授）摘要：研究了以DK110树脂为材料去除蜂胶提取液中的重金属铅。结果表明，DK110树脂吸附时，溶液的pH对交换容量影响很大。对与蜂胶提取液相同铅浓度（142μg/ml）和乙醇浓度的乙醇溶液（89.6%乙醇溶液）,使用DK110树脂进行吸附时发现在pH5-6之间为适宜pH,树脂吸附铅的最大交换容量为682μg/ml。在pH为5.5时，加入10ml树脂动态吸附，铅的吸附容量为500.4μg/ml。在此pH下吸附铅的效果为最佳，pH=6做吸附实验时发现在此条件下，铅的吸附容量为492μg/ml，黄酮浓度为17.78mg/ml，黄酮吸附容量为33.28mg/ml。和pH=5.5时相比铅去吸附容量相差不大，但黄酮吸附的量少于pH=5.5时黄酮吸附的量。40ml时3组实验铅浓度均处于最低值，可以在40ml时停止吸附。关键词：蜂胶；黄酮；DK110；吸附；StudyontheRemovalofLeadinPropolisExtractedSolutionbytheMethodofIonExchangeResinZHENGJiaweiDirector:HEWeizhong(AssociateProfessor)(Dept.ofScience&Environmentalscience,ZhejiangUniversity,321004)Abstract:Studyon.DK110weak.acidresin.as.thematerialremoval.of.Pbpropolisextract.The.resultsshow.that,DK110.resin,solution.pHgreatlyinfluenceonexchange.capacity.Withthe.sameconcentrationofpropolisextractlead(142μg/ml)andethanolconcentrationethanolsolution(89.6%ethanol),usingtheDK110resintoabsorbthatbetweenpH5-6forpH,thebiggestexchangecapacityofresinadsorptionofleadis682μg/ml.WhenthepHis5.5,with10mlresindynamicadsorption,theadsorptioncapacityofleadis500.4μg/ml.TheadsorptionofleadonthepHeffectisthebest,findtheconditionspH=6adsorptionexperiments,theadsorptioncapacityofleadis492μg/ml,flavonoidsflavonoidsconcentrationis17.78mg/ml,theadsorptioncapacityfor33.28mg/ml.AndpH=5.5whencomparedtotheadsorptioncapacityofleadweresimilar,buttheflavoneadsorptionflavonoidsadsorptionamountislessthanpH=5.5.40mlconcentrationof3groupsexperimentofleadareinthelowestvalue,canstoptheadsorbedon40ml.Keyword:Propolis；Flavone；DK110；Adsorption；离子交换树脂法去除蜂胶提取液中铅的研究21引言蜂胶是蜜蜂献给人类的一种独特的天然物质，被