| 食品级磷酸镁中氧化镁含量的返滴定分析法 |
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| 引用本文： | 杨学芬,马新蕊,赵海燕,曾波.食品级磷酸镁中氧化镁含量的返滴定分析法[J].云南化工,2009,36(1):41-42. |
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| 作者姓名： | 杨学芬 马新蕊 赵海燕 曾波 |
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| 作者单位： | 云南省化工研究院,云南,昆明,650228 |
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| 基金项目： | 云南省科研院所专项基金 |
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| 摘 要： | 研究了以稀盐酸溶液溶解样品,EDTA标准溶液配位,硫酸镁标准溶液返滴定,测定食品级磷酸镁中氧化镁的分析方法。该方法的回收率为97%~103%,RSD<0.21%。
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| 关 键 词： | 食品级磷酸镁 氧化镁 硫酸镁 配位滴定 |
Determination of Magnesium Oxide from Food Grade Magnesium Phosphate by Back Titration |
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| YANG Xue-fen,MA Xing-rui,ZHAO Hai-yan,ZEBG Bo.Determination of Magnesium Oxide from Food Grade Magnesium Phosphate by Back Titration[J].Yunnan Chemical Technology,2009,36(1):41-42. |
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| Authors: | YANG Xue-fen MA Xing-rui ZHAO Hai-yan ZEBG Bo |
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| Affiliation: | ( Yunnan Research Institute of Chemical Industry, Kunming 650228 ) |
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| Abstract: | Determination of magnesium oxide from food grade magnesium phosphate was studied by dissolution of samples with dilute hydrochloric acid, coordination with EDTA standard solution and back titration with magnesium sulfate standard solution. The recovery and relative standard deviation were 97 - 103% and less than 0.21% respectively. |
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| Keywords: | food grade magnesium phosphate magnesium oxide magnesium sulfate coordination titration |
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