| 柠檬酸—硝酸铝溶剂溶解磷灰石中全磷 |
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| 引用本文： | 冯晓军,薛菁.柠檬酸—硝酸铝溶剂溶解磷灰石中全磷[J].岩矿测试,1997,16(1):65-67. |
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| 作者姓名： | 冯晓军 薛菁 |
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| 作者单位： | 晋宁县昆阳磷矿质检科 |
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| 摘 要： | 试验了用柠檬酸＿Ａｌ（ＮＯ３）３溶液做溶剂分解磷灰石的预处理方法。结果表明，在微沸加热６ｍｉｎ条件下，质量浓度分别为３２ｇ／Ｌ和９０ｇ／Ｌ的柠檬酸＿Ａｌ（ＮＯ３）３混合溶剂可以有效地分解磷灰石，测定全磷的回收率＞９９％，与王水溶样结果相符，并用测定磷灰石标样中全磷进行验证，说明方法可靠。
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| 关 键 词： | 柠檬酸 硝酸铝 溶剂 磷灰石 磷 |
A Chemical Pretreatment Method for the Determination of Phosphorus in Apatites with Citric Acid Aluminum Nitrate as Solvent |
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| Feng Xiaojun,Xue Jing.A Chemical Pretreatment Method for the Determination of Phosphorus in Apatites with Citric Acid Aluminum Nitrate as Solvent[J].Rock and Mineral Analysis,1997,16(1):65-67. |
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| Authors: | Feng Xiaojun Xue Jing |
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| Abstract: | A chemical pretreatment method for the determination of total phosphorus in apatite with citric acid_aluminum nitrate as solvent is described in this paper. The results show that the mixed solvent of citric acid and aluminum nitrate with mass concentrations of 32 g/L and 90 g/L respectively can effectively decompose apatite. The recovery of phosphorus by this method is above 99%. The method is verified by the determination of total phosphorus in standard reference apatite samples. The results are in a good agreement with that obtained by aqua regia decomposition method. |
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| Keywords: | citric acid aluminum nitrate solvent phosphorus apatite |
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