| 柠檬酸—硝酸铝混合溶剂分解示差光法测定磷矿石中高含量全磷 |
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| 引用本文： | 欧志兵.柠檬酸—硝酸铝混合溶剂分解示差光法测定磷矿石中高含量全磷[J].磷肥与复肥,2001,16(2):65-66. |
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| 作者姓名： | 欧志兵 |
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| 作者单位： | 昆阳磷矿科技开发科, |
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| 摘 要： | 分析磷矿石的物理化学特性,考察多种磷矿石试样的溶解方法,探讨柠檬酸-硝酸铝混合溶剂溶解磷矿石的反应机理,借助示差光度法提出了快速准确测定磷矿石中高含量全磷的新方法.试验表明,此方法测定结果与磷钼酸喹啉重量法分析结果相符,其RSD(相对标准偏差)＜5%(n＝6).
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| 关 键 词： | 磷矿石 全磷 测定 示差光度法 柠檬酸-硝酸铝混合溶剂 |
| 文章编号： | 1007-6220(2001)02-0065-02 |
| 修稿时间： | 2000年8月5日 |
Determination of high content of total P2O5 by mixed solvolysis differential
spectrophotometric method |
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| OU Zhibing.Determination of high content of total P2O5 by mixed solvolysis differential
spectrophotometric method[J].Phosphate & Compound Fertilizer,2001,16(2):65-66. |
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| Authors: | OU Zhibing |
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| Abstract: | Physicochemical properties and dissolving methods of phosphate rocks are examined. The mechanism of dissolving phosphate rocks by citric acidaluminum nitrite mixed solvent is discussed. In light of differential photometric method, a new method to analyse with total phosphorus of phosphate rocks with quickly and exactly, is put forward. It is proved that the results accords to those from phosphomolybquinoline weighing method, with the RSD(Relative Standard Deviation)<5%( n =6). |
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| Keywords: | phosphate rock total phosphorus analysis differential photometric method citric acid aluminum nitrite mixed solvent |
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