| 煤棒中腐植酸钠含量测定方法改进探讨 |
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| 引用本文： | 陈文娟,刘宏,郭华林.煤棒中腐植酸钠含量测定方法改进探讨[J].煤化工,2009,37(1). |
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| 作者姓名： | 陈文娟 刘宏 郭华林 |
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| 作者单位： | 1. 湖南化工职业技术学院,株洲,412004
2. 湖南金信化工有限公司,冷水江,417506 |
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| 摘 要： | 根据国标对煤棒中腐植酸钠含量进行测定,结果偏高,误差较大,为此分析了该方法产生误差的原因。以水为浸取剂代替NaP2O7和NaOH混合碱液,改进了腐植酸钠的测定方法,相对标准偏差S较小为0.02%,加标回收率为95.0%～103.0%,精密度与准确度均较高,应用于生产实际中样品的测定,可为生产优质煤棒提供保证。
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| 关 键 词： | 煤棒 腐植酸钠 测定 改进 |
Updating the Method for Determining Sodium Humate in the Coal Rod |
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| Chen Wenjuan,Liu Hong,Guo Hualin.Updating the Method for Determining Sodium Humate in the Coal Rod[J].Coal Chemical Industry,2009,37(1). |
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| Authors: | Chen Wenjuan Liu Hong Guo Hualin |
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| Affiliation: | 1.Hunan Chemical Industry Vocational Technology Institute;Zhuzhou 412004;2.Hunan Jinxin Chemical Co.;Ltd.;Lengshuijiang 417506 |
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| Abstract: | According to the paper,the content of the sodium humate in the coal rod was determinated based on GB.It was found that the value tended to be greater and the error bigger.The cause of the error was analyzed,and the mixed alkali liquid of NaP2O7 and NaOH were replaced by the water leaching agent,the sodium humate determination method was thus improved,consequently,the standard deviation became less than 0.02% and the recovery rate was 95.0%-103.0%.With such a high accuracy,to produce high quality coal rod ca... |
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| Keywords: | coal rod sodium humate determination improve |
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