离子选择性电极测定海带中碘在水中浸泡的流失率及其含量 毕业论文

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1、安徽农业大学毕业论文(设计)论文题目离子选择性电极测定海带中碘在水中浸泡的流失率及其含量姓名学号07120056院系理学院专业应用化学指导教师职称副教授中国·合肥二零一一年六月安徽农业大学学士学位论文(设计)开题报告课题名称离子选择性电极测定海带中碘在水中浸泡的流失率及其含量课题来源自选学生姓名专业应用化学学号07120056指导教师姓名职称副教授研究内容海带是大型的经济海藻，本文即采用海带为实验材料，通过干法灰化对海带进行处理后,采用碘离子选择性电极测定海带中碘的总含量，同时对一定量的1×3cm海带分别用30mL去离子水中浸泡120min,60

2、min,30min,15min,5min,1min后测定其中的碘含量，以此来考察海带中碘的含量以及随着浸泡时间的增加海带中碘的流失率。研究计划1)2010.11月～2010.12月进行了相关实验背景和文献资料的收集整理，初步确定实验方案。2)2011.2月～2011.3月对实验中涉及到的具体实验仪器与化学药品进行初步汇总。3)2011.3月～2011.4月对实验所需原料、药品、仪器进行采购。4)2011.3月～2011.5月具体实验阶段，通过实验，测定海带中的碘含量，并探索海带中碘在水中浸泡的流失率。5）后期阶段，将相关的研究和实验结果整理形成论

3、文形式。特色与创新海带具有很大的食用价值和经济价值，其中碘含量相当丰富。实验通过碘离子选择性电极测定海带中的碘含量，并测定在水中浸泡过一定时间后的海带中的碘的含量，以期探索海带中的碘在水中浸泡的流失率。为提高海带在日常生活中的食用价值以及在生产实践中的经济价值提供理论参考。指导教师意见同意开题张鑫教研室意见同意院系意见主要领导签名：年月日目录中文摘要····································································································

4、1关键词·······································································································1前言···········································································································11实验材料与试剂··················································

5、···········································21.1主要仪器设备·························································································21.2主要试剂和溶液配制···············································································21.2.1试剂··································

6、·······························································21.2.2溶液配制····························································································22实验步骤··································································································22.1预处理

7、··································································································32.2实验方法·······························································································32.2.1标准溶液的配制和测定···························································

8、·············32.2.2海带中碘含量的测定········································