| 直接酸提取电感耦合等离子体发射光谱法测定煤中主要成灰 … |
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| 引用本文： | 刘东艳,张园力.直接酸提取电感耦合等离子体发射光谱法测定煤中主要成灰 …[J].光谱学与光谱分析,2000,20(4):514-517. |
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| 作者姓名： | 刘东艳 张园力 |
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| 作者单位： | 中科院山西煤化所煤转化国家重点实验室,太原 |
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| 基金项目： | 中科院院大型仪器功能开发基金 |
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| 摘 要： | 本文提出了一种全新的以酸直接提取煤中的矿物元素、ＩＣＰ－ＡＥＳ测定其含量的方法。考察了最佳酸配比、酸用量、最佳提取时间、仪器最佳操作参数以及元素间的干扰等诸多因素。与其灰分含量相比，煤中矿物质的提取率在９５％以上，各元素加标回收率为９６％～１０４％，九次测定相对标准偏差小于４％。方法准确、快速、适合于不同煤样中矿物元素的分析测定。
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| 关 键 词： | 酸提取 ICP－AES 煤 成灰元素 测定 矿物元素 |
Acid Extraction of Coal for the Determination of Major Ash Forming Elements by ICP-AES |
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| Dongyan LIU and Yuanli ZHANG,State Key Laboratory of Coal Conversion.Acid Extraction of Coal for the Determination of Major Ash Forming Elements by ICP-AES[J].Spectroscopy and Spectral Analysis,2000,20(4):514-517. |
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| Authors: | Dongyan LIU and Yuanli ZHANG State Key Laboratory of Coal Conversion |
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| Institution: | State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001 Taiyuan. |
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| Abstract: | A new method is described for the analysis of whole coal for the major ash forming elements by ICP-AES. The major ash forming elements were extracted with HF and HNO3 in an ultrasonic water bathe. The best proportion of the acid and the time of extraction were studied. Compared with the ash content of coal, the extraction ratio is more than 95%. Recovery ratio is between 96%-104%. RSD of extraction and determination is less than 4% (n = 9). |
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| Keywords: | Acid extraciton ICP-AES Coal Ash forming elements |
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