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首页> 外文期刊>ISIJ international >Reduction of Spectral Interference between X-ray Peaks Originating from an X-ray Tube and X-ray Fluorescence Peaks in Total Reflection X-ray Fluorescence Analysis
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Reduction of Spectral Interference between X-ray Peaks Originating from an X-ray Tube and X-ray Fluorescence Peaks in Total Reflection X-ray Fluorescence Analysis

机译：减少X射线管发出的X射线峰与全反射X射线荧光分析中的X射线荧光峰之间的光谱干扰

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摘要

This paper describes a method for improving the detection limit for zinc by a portable total reflection X-ray fluorescence (TXRF) spectrometer with a tungsten target X-ray tube. Measuring a TXRF spectrum of a small amount of sample in a vacuum remarkably reduced the intensity of the W Lα line (8.40 keV) that originated from the X-ray tube and that partially overlapped with the Zn Kα line (8.63 keV), leading to an improvement in the detection limit for zinc. A detection limit of 0.003 mg/L was achieved when a TXRF spectrum of a 0.05 mg/L zinc standard solution was measured in a vacuum. A TXRF spectrum of a river water sample containing 0.05 mg/L of zinc was also measured, and the Zn Kα line measured in a vacuum was more clearly observed than that measured in air.
机译：本文介绍了一种通过带有钨靶X射线管的便携式全反射X射线荧光（TXRF）光谱仪提高锌的检出限的方法。在真空中测量少量样品的TXRF光谱显着降低了源自X射线管且与ZnKiα线部分重叠的WLα线的强度（8.40 keV）。 （8.63 keV），从而提高了锌的检出限。当在真空中测量0.05 mg / L锌标准溶液的TXRF光谱时，检测限达到0.003 mg / L。还测量了含有0.05mg / L的锌的河水样品的TXRF光谱，并且与在空气中测量的相比，在真空中测量的Zn Kiα线更清楚地观察到。

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