| 鸡蛋壳中钙镁含量的测定 |
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| 引用本文： | 孙彩云,刘端,安志达.鸡蛋壳中钙镁含量的测定[J].唐山师范学院学报,2009,31(2):28-30. |
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| 作者姓名： | 孙彩云 刘端 安志达 |
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| 作者单位： | 河北理工大学,轻工学院,河北,唐山,063000 |
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| 摘 要： | 分别采用干式灰化法、湿式消化法、直接酸溶法处理蛋壳，并对上述三种方法进行了比较，从中选择出适合实验教学的简便方法为直接酸溶法。采用EDTA络合滴定法测定鸡蛋壳样品中的钙、镁含量分别约为38．77％．0．49％。
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| 关 键 词： | 鸡蛋壳 钙 镁 含量 滴定 |
Measurement of the Contents of Calcium and Magnesium in Eggshell |
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| SUN Cai-yun,LIU Duan,AN Zhi-da.Measurement of the Contents of Calcium and Magnesium in Eggshell[J].Journal of Tangshan Teachers College,2009,31(2):28-30. |
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| Authors: | SUN Cai-yun LIU Duan AN Zhi-da |
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| Institution: | (College of Light Industry, Hebei Polytechnic University, Tangshan Hebei 063020, china) |
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| Abstract: | The contents of calcium and magnesium in eggshell were measured by using dry-ashing, wet-digestion and direct-acid-solution methods respectively, which were compared and the results indicated that direct-acid-solution mathod was suitable for experimental teaching. Then, the contents of calcium and magnesium in eggshell were measured with EDTA complexometric titration method and the results were about 38.77% and 0.49% respectively. |
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| Keywords: | eggshell calcium magnesium content titration |
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