| 硫酸亚铁铵返滴重铬酸钾法快速测定橡子中单宁含量 |
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| 引用本文： | 赵全. 硫酸亚铁铵返滴重铬酸钾法快速测定橡子中单宁含量[J]. 哈尔滨商业大学学报(自然科学版), 1999, 0(3) |
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| 作者姓名： | 赵全 |
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| 作者单位： | 哈尔滨大学食品系!黑龙江哈尔滨，１５００２０ |
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| 摘 要： | 将橡子中单宁浸出，用铜氨溶液沉淀，再用重铬酸钾氧化，过量的重铬酸钾用标准硫酸亚铁铵返滴定，计算单宁含量。
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| 关 键 词： | 单宁测定 重铬酸钾法 |
THE WAY OF RETUM TITRATION OF OVER-DICHREMATE-POTASSIUM WITH STANDARD AMMONIUM FERROUS SULPHATE TO CACULATE THE CONTENT OF TANNIC ACID IN RUBBER ACORN |
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| Zhao Quan. THE WAY OF RETUM TITRATION OF OVER-DICHREMATE-POTASSIUM WITH STANDARD AMMONIUM FERROUS SULPHATE TO CACULATE THE CONTENT OF TANNIC ACID IN RUBBER ACORN[J]. Journal of Harbin University of Commerce :Natural Sciences Edition, 1999, 0(3) |
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| Authors: | Zhao Quan |
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| Abstract: | Dip tannic acid in rubber acorn out and precipitate with cuprammonia, then oxidizewith dichromate potassium, take a measure of return titration of over-dichromate potassiumwith standard ammonium ferrous sulphate. Caculate the content of tannic acid. |
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| Keywords: | caculation of tannic acid over-dichromate potassium |
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