煤中含有数十种微、痕量元素。定量测定这些元素对煤的成因研究、煤层对比、以及煤炭加上利用的环保均有重要意义。本工作利用HF—HNO_3分解试样,石墨炉原子吸收測定煤中的Ag、As、Ba、Cd、Co、Cu、Mn、Ni、Pb、V、Sb、Sr、Ti、Zn等元素。方法的灵敏度,精密度和准确度均令人满意。 Coal contains dozens of micro, trace elements. Quantitative determination of these elements on the genetic study of coal, coal contrast, as well as coal plus the use of environmental protection are of great significance. In this work, elements such as Ag, As, Ba, Cd, Co, Cu, Mn, Ni, Pb, V, Sb, Sr, Ti and Zn in coal were determined by HF-HNO_3 decomposition sample and graphite furnace atomic absorption spectrometry. The sensitivity, precision and accuracy of the method are satisfactory.