地质部门进行矿物光谱分析,多采用穴电极法,利用加入不同的氧化、还原、卤化剂及熔剂等改变样品中基物和待测元素的化合、物理状态,以达到促进或抑制元素的蒸发、激发、提高分析灵敏度和稳定电弧提高准确度的目的。粉末样品在电弧蒸气云中的蒸发、激发机理是相当复什的过程,就拿硫铁矿的蒸发气态化学反应过程来说,在碳电 Geological department for mineral spectroscopy, the use of multi-point electrode method, the use of different oxidation, reduction, halogenating agents and flux change the sample matrix and the chemical elements under test, the physical state in order to achieve the promotion or inhibition of elemental evaporation, Stimulate, improve the analysis sensitivity and stability of the arc to improve the accuracy of the purpose. Evaporation of the powder sample in the arc vapor cloud, the excitation mechanism is quite complex process, take pyrite gasification vaporization reaction process, the carbon