摘要
文章探讨的煤中汞检测法,是使用原子吸收光谱法检测煤炭样品中的总汞,经湿法消化处理样品,再分别检测上清液与沉淀中的汞含量,通过对比检测结果推测样品中汞的存在形式。该检测法检出限低,灵敏度高、精密度好、分析速度快、准确度高,具备方法简便、选择性好、应用广泛的优势。研究掌握煤中汞的存在形式,可在燃煤时针对性采取有效措施减少汞及其化合物的释放量,在环境保护中发挥着重要的作用。
In this paper, the atomic absorption spectrometry is used to determinate total mercury in coal samples at first. For the second step, wet digestion method is used, which is aimed at detecting the mercury in supernatant and precipitate by atomic absorption spectrometry. With theses results, the existence form of mercury in samples can be speculated. Atomic absorption spectroscopy has advantages of high specificity, high sensitivity and high accuracy. The study of the mercury existence in coals helps to reduce the amount of mercury and its compounds that released during combustion, which plays an important role in environmental protection.
作者
郭卉
GUO Hui(China Railway Siyuan Survey and Design Group Co., LTD, Wuhan, 43006)
出处
《铁道勘测与设计》
2017年第2期91-93,106,共4页
Railway Survey and Design
关键词
煤炭
汞
原子吸收光谱法
Coal
Mercury
Atomic Absorption Spectrometry
