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首页> 外文期刊>Spectrochimica Acta, Part B. Atomic Spectroscopy >Determination of major elements by wavelength-dispersive X-ray fluorescence spectrometry and trace elements by inductively coupled plasma mass spectrometry in igneous rocks from the same fused sample (110 mg)
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Determination of major elements by wavelength-dispersive X-ray fluorescence spectrometry and trace elements by inductively coupled plasma mass spectrometry in igneous rocks from the same fused sample (110 mg)

机译：同一熔融样品（110 mg）中火成岩中的主要成分通过波长色散X射线荧光光谱法测定，痕量元素通过电感耦合等离子体质谱法测定

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摘要

The fusion technique is proposed for simultaneous determination of 35 elements from the same sample. Only 110 mg of rock sample was used to obtain fused glasses for quantitative determination of 10 major elements by wavelength dispersive X-ray fluorescence analysis, 16 rare earth elements and some other trace elements by inductively coupled plasma mass spectrometry analysis. Fusion was performed with 1.1 g of lithium metaborate and LiBr solution as the releasing agent in platinum crucible in electric furnace at 1100 degrees C The certified reference materials of ultramafic, mafic, intermediate and felsic igneous rocks have been applied to obtain the calibration curves for rock-forming oxides (Na2O, MgO, Al2O3, SiO2, P2O5, K2O, CaO, TiO2, MnO, Fe2O3) and some trace elements (Ba, Sr, Zr) determination by X-ray fluorescence analysis. The repeatability does not exceed the allowable standard deviation for a wide range of concentrations. In the most cases the relative standard deviation was less than 5%. Obtained glasses were utilized for the further determination of rare earth (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and some other (Ba, Sr, Zr, Rb, Cs, Y, Nb, Hf, Ta, Th and U) trace elements by inductively coupled plasma mass spectrometry analysis with the same certified reference materials employed. The results could mostly be accepted as satisfactory. The proposed procedure essentially reduces the expenses in comparison with separate sample preparation for inductively coupled plasma mass spectrometry and X-ray fluorescence analysis. (C) 2016 Elsevier B.V. All rights reserved.
机译：建议使用融合技术同时测定同一样品中的35种元素。仅使用110毫克的岩石样品来获得熔融玻璃，用于通过波长色散X射线荧光分析定量测定10种主要元素，通过电感耦合等离子体质谱分析定量测定16种稀土元素和一些其他痕量元素。在1100摄氏度的电炉中，使用1.1 g偏硼酸锂和LiBr溶液作为脱模剂进行熔融。已应用超镁铁矿，镁铁矿，中性和长英质火成岩的参考物质来获得岩石的校准曲线X射线荧光分析法测定生成氧化物（Na2O，MgO，Al2O3，SiO2，P2O5，K2O，CaO，TiO2，MnO，Fe2O3）和一些微量元素（Ba，Sr，Zr）。在宽范围的浓度下，重复性均不超过允许的标准偏差。在大多数情况下，相对标准偏差小于5％。将获得的玻璃用于进一步测定稀土元素（La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb，Lu）和其他一些元素（Ba，Sr，Zr， Rb，Cs，Y，Nb，Hf，Ta，Th和U）痕量元素通过电感耦合等离子体质谱法分析，并使用相同的认证参考材料。结果大体上可以令人满意。与用于电感耦合等离子体质谱法和X射线荧光分析的单独样品制备相比，拟议的程序实质上减少了费用。 （C）2016 Elsevier B.V.保留所有权利。

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