| 腐植酸复合肥中的氮、磷、钾含量分析 |
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| 引用本文： | 安学斌,王云山,张金平,杨刚. 腐植酸复合肥中的氮、磷、钾含量分析[J]. 化学分析计量, 2010, 19(6): 29-32 |
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| 作者姓名： | 安学斌 王云山 张金平 杨刚 |
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| 作者单位： | 中国科学院过程工程研究所生态化工实验室,北京,100190;中国科学院过程工程研究所生态化工实验室,北京,100190;中国科学院过程工程研究所生态化工实验室,北京,100190;中国科学院过程工程研究所生态化工实验室,北京,100190 |
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| 基金项目： | 中国科学院过程工程研究所知识创新工程前瞻性项目 |
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| 摘 要： | 采用凯氏定氮法、磷钼酸喹啉容量法、ICP-AES法分别分析腐植酸复合肥的氮、磷、钾含量。研究结果表明,在添加不同酸时,应使盐酸的离子浓度大于硫酸的离子浓度,从而消除硫酸盐对磷分析的影响;待测液的酸度控制在1.0~1.6 mol/L为较适宜条件。方法具有良好的准确度和精密度,适用于腐植酸复合肥中氮、磷、钾的精确分析。
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| 关 键 词： | 腐植酸复合肥 凯氏定氮法 磷钼酸喹啉容量法 ICP-AES |
ANALYSIS OF THE CONTENT OF NITROGEN, PHOSPHORUS, POTASSIUM IN HUMIC ACID COMPOUND FERTILIZER |
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| An Xuebin,Wang Yunshan,Zhang Jinping,Yang Gang. ANALYSIS OF THE CONTENT OF NITROGEN, PHOSPHORUS, POTASSIUM IN HUMIC ACID COMPOUND FERTILIZER[J]. Chemical Analysis And Meterage, 2010, 19(6): 29-32 |
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| Authors: | An Xuebin Wang Yunshan Zhang Jinping Yang Gang |
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| Affiliation: | (Eco-Chemical Engineering Laboratory, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | The content of nitrogen, phosphorus and potassium in humic acid compound fertilizer were analyzed by Kjeldahl method, molybdophosphoric acid and quinoline volumetric procedure, and ICP - AES, respectively. The research results indicated that the influence of sulphate on the analysis of phosphorus could be eliminated when the concentration of C1- was more than that of SO4 2- as using different acid. The feasible condition for the control of acidity of the solution was 1.0 - 1.6 mol/L. Owing to favorable accuracy and precision, the methods were especially suitable for accurate determination of humic acid compound fertilizer. |
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| Keywords: | humic acid compound fertilizer Kjeldahl method molybdophosphoric acid and quinoline volumetric procedure ICP- AES（ inductively coupled plasma atomic emission spectrometer） |
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