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原子光谱法是煤、焦炭和石墨的分析手段之一。Mills和Belcher曾全面评述了原子吸收光谱,原子荧光,发射光谱和X射线荧光光谱法在煤、焦炭和煤灰的最新应用。等离子发射光谱法已是这些材料的主要分析方法之一,可快速地测量样品中高含量和低含量成份。本实验采用干法灰化样品,所得的煤和焦炭灰份在聚氟乙烯溶样器中用HNO_3+HCl+HF密封溶解;高纯石墨残渣用HNO_3+HCl浸取。样品溶液用等离子发射光谱法测定。
Atomic spectroscopy is one of the means of analysis of coal, coke and graphite. Mills and Belcher reviewed the latest applications of atomic absorption spectroscopy, atomic fluorescence, emission spectroscopy and X-ray fluorescence spectrometry in coal, coke and soot. Plasma emission spectrometry has been one of the main analytical methods for these materials, enabling rapid measurement of high and low levels of components in a sample. In this experiment, dry ashing samples were used. The resulting coal and coke ash were sealed and sealed with HNO 3 + HCl + HF in a polyvinyl fluoride sample dissolver. The high purity graphite residue was leached with HNO 3 + HCl. The sample solution was measured by plasma emission spectrometry.