Energy Dispersive X-Ray Fluorescence Spectrometer And Determination Of Element Content In Ferromagnetic Material

Ferromagnetic material BaFe₁₂O₁₉as a permanent magnet material and therecording material has been widely applied in many fields such as electro-acousticdevices, automotive, communications etc. BaFe₁₂O₁₉will have broad applicationprospects with the rapid development of satellite technology, video technology andelectronic technology. The determination of Fe and Ba content in BaFe₁₂O₁₉hasimportant guiding significance to the industrial production process.Now often used inthe detection of BaFe₁₂O₁₉methods are the arsenic acid salt method, chromate method,spectrophotometry and inductively coupled plasma atomic emission spectrometry（ICP-AES） etc. Above methods are required to use chemicals before processing thesamples, can’t timely detection of samples, and the experiment steps are cumbersome,time is long, cost higher shortcomings, resulting in lower production efficiency. Solooking for a simple, rapid and accurate analysis method is particularly important.Energy dispersive X-ray fluorescence analysis technology with the advantages ofhigh accuracy, fast analysis, nondestructive testing and sample preparation processhas been widely applied in many fields such as minerals, metallurgy and materials,archaeological etc.With the advances in microelectronic technology and computertechnology, portable energy dispersive X-ray fluorescence spectrometer has a greatmarket space and value.In this paper, the portable energy dispersive X-ray fluorescence spectrometerwas constituted by the excitation source （high voltage power supply, filament powersupply, X-ray tube）, the detection system （detector, amplifier, multi-channelanalyzer） of unit structures.The high-voltage power supply system and filamentpower system were self-developed, which shown the properties of small volume, highefficiency, and stable performance.Articles from instruments and the development of analysis technology, thepresent situation, analytical methods, instrument characteristics, the geometricalarrangement of the optical path, sample preparation, elemental identification and determination of the target element content and other aspects has carried on a morein-depth research.Using standard samples made by the powder tabletting method tocomplete the determination of Fe and Ba contents in ferromagnetic materialBaFe₁₂O₁₉.Measurement results indicated that Fe content was57.28%, the Ba contentwas13.42%in BaFe₁₂O₁₉, and the relative standard deviation was1.05%and0.73%respectively. Energy dispersive X-ray fluorescence analyzer can accurately completethe detection of the ferromagnetic material to improve the production efficiency.Thistechnology has made a great significance in the materials industrial production.