自从欧盟实施RoHS（电子电气设备所含特定有害物质限制使用指令）环境法规以来，电子电器行业的有害元素分析变得越来越重要。X射线荧光光谱能够简单、快速、无损的分析固体、粉末、液体样品，被广泛用作筛选方法。
用能量色散X射线荧光光谱仪（EDX）测定无铅兼容印刷电路板，通过成图分析检出铅后，还可以确定检出位置。
X-Ray Fluorescence Spectrometer (EDX-GP)
This instrument irradiates the foreign matter with X-rays and measures the energy of the generated fluorescent X-rays to determine the type and content of the elements comprising the foreign matter. It is extremely effective for the rapid and easy identification of metals and other inorganic substances.