X-ray fluorescence spectrometer

所需的波长色散X射线荧光光谱仪（XRF）代表了固体和液体材料非破坏性定性和定量元素分析的标准技术。土壤和其他地质材料中的元素浓度对任何研究都是至关重要的，因为它提供了对土壤养分储量和风化状态的估计，支持通过X射线衍射鉴定矿物，并允许对岩石和矿石进行表征，以及设计应用地球科学中的新技术材料。所要求的仪器将由哈勒-维滕贝格马丁·路德大学农业和营养科学研究所以及地球科学和地理研究所的几个研究小组共同使用（土壤科学、矿物学和地球化学、岩石学和应用地质学）。XRF仪器将取代矿物学和地球化学工作组中的旧XRF仪器，并为学院的跨机构研究基础设施做出贡献;联合管理战略将使仪器得到有效利用，并促进研究合作。XRF设备不仅用于学术研究，还将用于学生教育。鉴于待分析材料的性质差异很大，我们需要一种能够分析固体和液体样品中Z ≥ 4（铍）元素的多功能波长色散XRF仪器，因此配备了一系列用于样品制备的附件，即：用于制备压制均匀颗粒的电动液压机和用于制备熔融珠的设备，以及用于地质材料定量分析的标准。波长色散XRF仪器将补充现有的基本设备，并为我们提供精确和非破坏性测定地质材料中大量元素浓度的必要能力。

The requested wavelength-dispersive X-ray fluorescence spectrometer (XRF) represents the standard technique for non-destructive qualitative and quantitative element analysis of solid and liquid materials. Element concentrations in soils and other geomaterials are fundamental to any research, since providing estimates of nutrient stocks and the weathering state of soils, supporting the identification of minerals by X-ray diffraction, and allowing for characterization of rocks and ores, and designing new technical materials in applied geosciences. The requested instrument will be jointly used by several research groups of the Institute of Agricultural and Nutritional Sciences and of the Institute of Geosciences and Geography at the Martin Luther University Halle-Wittenberg (soil sciences, mineralogy and geochemistry, petrology, and applied geology). The XRF instrument will replace an old XRF instrument in the mineralogy and geochemistry working group and contribute to the cross-institutional research infrastructure at the faculty; the joint management strategy will enable efficient use of the instrument and foster research collaborations. The XRF device is not only intended for academic research but will also be used in the education of students. Given the strongly differing nature of the materials to be analyzed, we request a versatile wavelength-dispersive XRF instrument capable to analyze elements with Z ≥ 4 (beryllium) in solid and liquid samples, thus equipped with a range of accessories for sample preparation, i.e., an electrohydraulic press to prepare pressed homogeneous pellets and equipment for preparation of fusion beads, as well as standards for the quantitative analysis of geomaterials. The wavelength-dispersive XRF instrument will complement the existing basic equipment and give us the necessary capability of precise and non-destructive determination of bulk element concentrations in geomaterials.