| 微波加热—压力消解快速测定风化煤中的游离腐植酸 |
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| 引用本文： | 高向阳,高岐,石杰,魏建河.微波加热—压力消解快速测定风化煤中的游离腐植酸[J].河南科学,1993(4). |
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| 作者姓名： | 高向阳 高岐 石杰 魏建河 |
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| 作者单位： | 河南农业大学化学教研室，河南农业大学化学教研室，郑州大学化学系，开封电视大学 郑州 450002，郑州 450002，郑州 450052，河南开封 475001 |
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| 摘 要： | 用聚四氟乙烯生料带密封容器,利用微波加热技术在较高温度和压力下浸提和消解风化煤样品中的游离腐植酸,样品不污染环境,也不被环境污染,测定的精密度和准确度高,与标准方法对照,测定速度提高数十倍,分析结果没有显著性差异,结论的置信度为95％。
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| 关 键 词： | 游离腐植酸 风化煤 微波加热 压力浸提 消解 |
RAPID DETERMINATION OF FREE HUMIC ACID IN WEATHERED COAL USING MICROWAVE HEATING DIGESTION METHOD UNDER PRESSURE |
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| Gao Xiangyang,Gao Qi,Shi Jie,Wei Jianhe Henan Agricultural University,Zhengzhou.RAPID DETERMINATION OF FREE HUMIC ACID IN WEATHERED COAL USING MICROWAVE HEATING DIGESTION METHOD UNDER PRESSURE[J].Henan Science,1993(4). |
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| Authors: | Gao Xiangyang Gao Qi Shi Jie Wei Jianhe Henan Agricultural University Zhengzhou |
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| Institution: | Gao Xiangyang,Gao Qi,Shi Jie,Wei Jianhe Henan Agricultural University,Zhengzhou 450002 Department of Chemistry,Zhengzhou University Zhengzhou 450052 Kaifeng Television University,Kaigeng 475001 |
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| Abstract: | A new microwave heating method has been studide for rapid determination of free humic acid in weathered coal samples. A small amount of sample solution (5.00ml) was digested with potassium dichtomate method in closed--conical flask by using microwave heating for 5 min after sample extracted under pressure. This method is simple, save reagent, save time and accurate. Nineteen samples can be ex- tracted (or digested) in every time test. The analtical results are satisfactory as compared with standard method. |
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| Keywords: | Free humic acid Weathered coal Microwave-Heating Digestion method under pressure |
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