| 电位滴定法测定化肥中的有效氮 |
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| 引用本文： | 郭丽丽,张立科,王静. 电位滴定法测定化肥中的有效氮[J]. 河北化工, 2009, 32(5): 58-59 |
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| 作者姓名： | 郭丽丽 张立科 王静 |
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| 作者单位： | 许昌学院化学化工学院,河南,许昌,461000 |
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| 摘 要： | 以市场上最常见的复合肥为研究对象，采用自动电位滴定法，达到滴定终点时消耗的VNaOH通过一次微分法来确定，进而求出复合肥中总氮量。实验结果表明，此法快速、简便、分析条件易于控制，而且准确度和精确度都较为理想。
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| 关 键 词： | 化肥 电位滴定 氮含量 沉淀剂 |
The Method of Determination of the Nitrogen's Concentration of the Compound Fertilizer by the Automatic Titrator Potential |
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| GUO Li-li,ZHANG Li-ke,WANG Jing. The Method of Determination of the Nitrogen's Concentration of the Compound Fertilizer by the Automatic Titrator Potential[J]. Hebei Chemical Engineering and Industry, 2009, 32(5): 58-59 |
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| Authors: | GUO Li-li ZHANG Li-ke WANG Jing |
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| Affiliation: | College of Chemistry and Chemical Engineering;Xuchang University;Xuchang 461000;China |
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| Abstract: | The nitrogen's concentration of the compound fertilizer was tested by the automatic titrator potential. The sample was titrated by the standard solution of NaOH, which volume was determined by the method of first-order differential.The experimental results showed that the method was quick ,simple and convenient ,apt to control analytical condition. Its accuracy and precision was ideal. |
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| Keywords: | chemical fertilizer potentiometric titration the content of nitrogen precipitant |
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