基于双曲线晶体技术的元素的高精度和高分辨率X射线光分析系统
Chenyang Lu1, Chong Huang1, Xuefeng Wang1
1Jiangsu Skyray Instrument Co., Ltd., Suzhou 215000, China.
Applied spectroscopy
|March 26, 2025
概括
双曲结晶 (DCC) 技术最大限度地减少了X射线光光谱学中的元素干扰. 这一进步使得石油产品中精确检测,即使硫度高.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
- 材料科学 材料科学 材料科学
背景情况:
- 元素干扰,特别是邻近元素之间的干扰,是X射线光 (XRF) 光谱学的重大挑战.
- 精确的元素分析在各种行业至关重要,包括石油产品质量控制.
研究的目的:
- 设计和评估一种使用双曲结晶 (DCC) 技术的新型波长分散光学系统.
- 为了克服干扰问题,并改善特定元素的检测极限,如 (Cl),在复杂的矩阵,如石油产品.
主要方法:
- 设计了一个多面双曲结晶 (DCC) 光学系统.
- 一个Johann型的石墨弧形晶体被用于单色激发光聚焦.
- 一个对数螺旋石墨曲晶体被用来收集目标光,特别是Cl在2.62 keV.
主要成果:
- 基于DCC的波长分散装置在石油产品中达到0.18 ppm的检测极限.
- 该设备表现出良好的稳定性,检测范围为0.38ppm,标准样本为1ppm.
- DCC技术有效地消除了高硫 (S) 度对检测的干扰.
结论:
- 开发的基于DCC的波长分散系统通过减轻元素干扰来显著提高XRF分析的准确性.
- 这项技术为精确量化石油产品中的提供了一个强大的解决方案,这对于质量和监管合规性至关重要.
- DCC方法为具有挑战性的样本矩阵中的元素分析提供了一种稳定而敏感的方法.
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