The Application Research Of Microbeam Micro Area X Fluorescence Probe Method

With the advancement of social development and science and technology,people in order to meet the current needs, on the macro research material slowly into the micro field, so that we can more easily know material composition. It playsan important role in micro sample composition analysis of investigation and detection of material of environmental protection, petrochemical, building materials, metal and non-metallic inorganic materials, ceramic, the identification of cultural relics, biomaterials, drug, semiconductor materials, toxic substances,geology and mineral resources, nuclear materials and thin film materials and other fields. Especiallythe research in the field of rapid identification of ore has more advantage.And microdomain X ray fluorescence analysis principle, structure characteristic,the rapid identification of mineral identification and application in Tongkeng tin.The research achievements of this paper mainly has:Using the national standard samples, a calibration equation, quantitative analysis model of calibration experience coefficient method. Initially established calibration curves of14kinds of elements with the Fe library, As, Ti, Co, and the calibrationcoefficient. The calibration curve fitting degree is high, the energy linearity.The calibration results based on the above, the light sheet samples by national standard, considering the micro beam micro X fluorescence analyzer ore identification identification base measurement area photos, ray microbeam micro X fluorescence spectrum measurement, contents of major elements, contents of major elements ratio information.Dachang Tongkeng ore deposit will retrieve the roadway in the ore section, after grinding can be made of application of micro beammicro District X rayfluorescence probe measurement, first with the energy dispersive X ray fluorescence instrument for screening, screening out a certain number of oreafter the application of micro beammicro District X fluorescent probemeasurements. Preparation of the rapid identification library ore identificationform, identification database and front with light sheet ore conforms to the national standard of comparison, identification of whether the ore. After comparison with the identification standards for ore light sheet, found little difference in contents of major elements for rapid identification of Library inTongkeng Tin ore deposits suspected arsenopyrite ore and suspected brass oreof themain elements and micro beammicro District X fluorescent probe ore, are only aslight difference between elements substitution, can believe arsenopyrite and pyrite is, this point is also portable X fluorescence measuring instrumentverification.The above research results, type IED-2000to improve our school micro beam micro X fluorescence analyzer has a great help. Will speed up the pace of localization of the instrument, to break the domestic market by foreigninstruments monopoly situation, improve equipment level and technical level of mineral resources exploration in China.