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一、引言当聚焦激光束照到试样表面上时,试样物质立即气化,从而产生金属蒸汽等离子体发射,利用辅助火花进一步激励该等离子体,并记录下发射光谱,分析该光谱便可以检测痕量元素同时可以确定其含量。
I. INTRODUCTION When a focused laser beam is applied to the surface of a sample, the sample material is immediately vaporized to produce a metal vapor plasma emission. The auxiliary spark is used to further excite the plasma and record the emission spectrum. Analyzing the spectrum Trace elements can be detected at the same time to determine its content.