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目 录 http://www.paper51.com 1.前言 .....................................................................................................................................1 内容来自论文无忧网 www.paper51.com
2.实验部分 ...........................................................................................................................3 paper51.com 2.1实验原理……............................................................................................................3 内容来自论文无忧网 www.paper51.com 2.2 主要反应式 .............................................................................................................3 paper51.com 2.3仪器及试剂…….......................................................................................................3 copyright paper51.com
2.3.1实验仪器……..........................................................................................................3 内容来自论文无忧网 www.paper51.com 2.3.2实验药品及试剂..................................................................................................3 copyright paper51.com 2.4 测定条件的选择实验............................................................................................. 4 内容来自论文无忧网 www.paper51.com 2.4.1四苯硼酸钠过量浓度的选择….............................................................................4 http://www.paper51.com 2.4.2试样采取量及盐酸加入量……….........................................................................5 内容来自www.paper51.com 2.5 测定步骤…...............................................................................................................5 paper51.com 2. 5.1.试样中钾含量的测定….……….……….……………….....................................5 http://www.paper51.com 2.5.2试样中钾含量的计算............................................................................................5 http://www.paper51.com 2.5.3数据记录及处理. ..................................................................................................6 内容来自www.paper51.com 3结果分析及讨论.................................................................................................................7 copyright paper51.com 3.1 . 复合肥中钾的测定结果讨论.. .............................................................................7 内容来自www.paper51.com 3.2对测定方法的选择分析............... ........ ..................................................................8 copyright paper51.com 3.3对四苯硼酸钠的过量体积的选择分析及讨论........................................................8 内容来自www.paper51.com 3.4四苯硼酸钠溶液配制的讨论............. ............. .......................................................8 内容来自www.paper51.com 3.5加入甲醛、EDTA做掩蔽剂的讨论............................................................................8 内容来自论文无忧网 www.paper51.com
3.6有关洗涤的分析及讨论...... ................. ..................................................................8 内容来自论文无忧网 www.paper51.com
3.7 有关干燥的分析讨论....... ................. ..................................................................9 paper51.com 3.8 对本次实验的一些体会..................... ..... .............................................................9 内容来自论文无忧网 www.paper51.com
致谢........................................................................................................................................10 copyright paper51.com 参考文献 ............................................................................................................................10 copyright paper51.com
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