| 消解炉消解-氧化还原滴定法测定土壤样品中有机质 |
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| 引用本文： | 熊艳,钟夏阳,陈金保.消解炉消解-氧化还原滴定法测定土壤样品中有机质[J].岩矿测试,2006,25(2):191-192. |
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| 作者姓名： | 熊艳 钟夏阳 陈金保 |
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| 作者单位： | 江西省地矿局实验测试中心,江西,南昌,330030 |
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| 摘 要： | 沿用经典重铬酸钾氧化-外加热法的原理，建立了消解炉消解-氧化还原滴定法测定土壤样品中有机质的方法。实验选择消解温度为180—200℃，消解时间为10—15min。方法用于大批量区域多目标地球化学调查样品中有机质的分析，测试值与标准值相符。对国家土壤标准物质进行测定，方法精密度（RSD，n=8）为1．93％～7．96％。
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| 关 键 词： | 氧化还原滴定法 消解炉消解 有机质 土壤 |
| 文章编号： | 0254-5357（2006）02-0191-02 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2005-10-202005-12-13 |
Determination of Organic Matters in Soil Samples by Oxidation-Reduction Titration with Furnace Digestion |
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| XIONG Yan,ZHONG Xia-yang,CHEN Jin-bao.Determination of Organic Matters in Soil Samples by Oxidation-Reduction Titration with Furnace Digestion[J].Rock and Mineral Analysis,2006,25(2):191-192. |
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| Authors: | XIONG Yan ZHONG Xia-yang CHEN Jin-bao |
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| Institution: | The Center of Rock and Mineral Analysis, Jiangxi Province Geology and Mineral Resource Bureau, Nanchang 330030, China |
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| Abstract: | Based on the principle of classical potassium dichromate oxidation-outer heating, a method for the determination of organic matters in soil samples by oxidation-reduction titration with furnace digestion was proposed. The digestion condition was optimized to 180-2001 and 10-15 min. The method has been applied to the determination of organic matters in samples from multi-goal geochemical survey project and the results are in agreement with standard values. The precision of the method is 1.93%-7.96%RSD (n =8). |
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| Keywords: | oxidation-reduction titration dispelling furnace digestion organic matter soil |
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