Abstract：In X-ray fluorescence spectrometric determination of titanium alloy, especially that contains chromium, vanadium and titanium, the determination accuracy and precision are affected by the poor linearity of element content and spectral intensity which is caused by severe spectral interference and matrix effect between coexisting elements. The interference from coexisting elements was effectively eliminated through establishing calibration curve with multiple titanium alloy standard samples, selecting appropriate spectral lines and measurement conditions, and correcting spectral overlapping and matrix effect. The spectral overlapping interference was removed by calculating the overlapping coefficient of Kβ line of titanium toward Kα line of vanadium and the overlapping coefficient of Kβ line of vanadium toward Kα line of chromium. The proposed method was applied to the determination of twelve major and minor elements including molybdenum, tin, zirconium, vanadium, aluminum, manganese, iron, chromium, tungsten, nickel, copper and silicon in titanium alloy and the found value was consistent with the chemical value with relative standard deviations (RSDs, n=10) less than 1.0 %. The method could be used in the detection of major and minor elements in three titanium alloys α, β, α+β for aviation.
张环月, 季守华, 李春艳. X射线荧光光谱法测定铬、钒、钛共存的钛合金中12种元素[J]. 冶金分析, 2014, 34(5): 30-34.
ZHANG Huan-yue, JI Shou-hua, LI Chun-yan. Determination of twelve elements coexisting with chromium, vanadiumand titanium in titanium alloys by X-ray fluorescence spectrometry. , 2014, 34(5): 30-34.
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