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Multi‐element Determination in Stream Sediment by X‐ray Fluorescence Spectrometry
Author(s) -
WANG Yongqiang,
PENG Xiuhong
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12380_38
Subject(s) - x ray fluorescence , sediment , mass spectrometry , environmental chemistry , chemistry , fluorescence , environmental science , analytical chemistry (journal) , geology , geomorphology , chromatography , physics , optics
With the continuous development of economy, the demand for mineral resources has increased. It is necessary to search for buried and deep ore deposit in order to meet the need for mineral resources. In recent years, a series of new technologies and new methods have gradually applied to exploration for mineral resources such as secondary halo method, structural superimposed halo method, thermal halo and primary halo method and these new methods have been developed in the application of finding mineral resources (Zhu et al., 2013; Tong, 2012). Especially in the regions with more trenches and water systems, it is convenient to carry out the work of stream sediment survey. At present, because there is not a uniform standard method in the determination of elements in stream sediment sample analysis, it is usually required to use various methods to obtain the data of major, minor and trace elements (Tian et al., 2010). But these methods have shortcomings such as they cannot achieve the determination of simultaneous multi-element analysis they have a long analytical process and low detection efficiency, which cannot meet the needs of the actual production. Therefore, it is particularly significant to seek an advanced, fast accurate way to determine the content of each component of stream sediment samples (Zheng and Liu, 2013; Guan et al., 2013). . X-ray fluorescence (XRF) spectrometry began in the early 1950s as a routine analytical tool and it has become one of the most widely used analytical methods in geochemical sample analysis (Ji et al., 2003). Compared with traditional chemical analysis, XRF has advantages with multi-element determination, high sensitivity, low detection limit and rapid analysis ability, playing an increasingly important role in metallurgy, geology, chemical industry and other areas (Gao et al., 1995; Feng et al., 2006). In this study, wavelength dispersive X-ray fluorescence (WDXRF) spectrometer was used to measure elemental composition of stream sediment samples with pressed-powder pellet preparation. The matrix effect was eliminated by using empirical coefficient method. Verified by the national material GSD21, the results of analysis by WDXRF can coincide with the calibration values.