钒钛磁铁矿样品中元素分析技术研究进展

Research Progress of Elemental Analysis Techniques for Vanadium-Titanium Magnetite

随着钒钛磁铁矿深度开发利用,准确测定其中元素含量尤为必要。然而相同的元素可选择多种测定方法,且部分测定方法原理相同但细节上存在差异,使得检测人员难以选择合适的测定方法。对近10年来钒钛磁铁矿中样品前处理方法和测定方法进行了综述。重点对酸溶分解法、熔融分解法等样品前处理方法的所用试剂和应注意的技术细节进行了总结,对各种测定方法如容量法/滴定法、光度法、极谱法、原子吸收光谱法(AAS)、X射线荧光光谱法(XRF)、电感耦合等离子体原子发射光谱法(ICP-AES)和电感耦合等离子体质谱法(ICP-MS)原理、特点、干扰消除、研究现状等进行评述。采用固体样品直接进样技术,从而建立更加快速、环保的分析测试技术是下一步研究方向。

With the deep development and utilization of vanadium titanium magnetite,it is particularly necessary to accurately determine the element content.However,multiple analytical techniques can be selected for the same element,and some analytical techniques have the same principle but different operational details,thus making it difficult for detection personnel to select the appropriate method.The advances of preparation methods and analytical techniques in vanadium-titanium magnetite in recent decades were reviewed,and the reagents used and technical details that should be concerned of acid dissolution and alkali fusion were summarized.Beside,principle,characteristics,interference elimination and research status of various analytical techniques included volumetry/titration,photometry,polarography,atomic absorption spectroscopy(AAS),X-ray fluorescence spectrometry(XRF),inductively coupled plasma atomic emission spectrometry(ICP-AES)and inductively coupled plasma mass spectrometry(ICP-MS)were commented.The next research direction is to establish faster and more environmentally friendly analytical techniques by using solid sample direct injection technology.