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使用激光诱导击穿光谱法(LIBS)和波长色散X射线荧光光谱法(WD-XRF)对异质胆结石进行分析。

Analysis of heterogeneous gallstones using laser-induced breakdown spectroscopy (LIBS) and wavelength dispersive X-ray fluorescence (WD-XRF).

作者信息

Jaswal Brij Bir S, Kumar Vinay, Sharma Jitendra, Rai Pradeep K, Gondal Mohammed A, Gondal Bilal, Singh Vivek K

机构信息

Department of Physics, Shri Mata Vaishno Devi University, Kakryal, Katra, 182320, Jammu and Kashmir, India.

Department of Urology and Nephrology, Opal Hospital, DLW Road, Varanasi, 221010, Uttar Pradesh, India.

出版信息

Lasers Med Sci. 2016 Apr;31(3):573-9. doi: 10.1007/s10103-016-1905-z. Epub 2016 Feb 17.

Abstract

Laser-induced breakdown spectroscopy (LIBS) is an emerging analytical technique with numerous advantages such as rapidity, multi-elemental analysis, no specific sample preparation requirements, non-destructiveness, and versatility. It has been proven to be a robust elemental analysis tool attracting interest because of being applied to a wide range of materials including biomaterials. In this paper, we have performed spectroscopic studies on gallstones which are heterogeneous in nature using LIBS and wavelength dispersive X-ray fluorescence (WD-XRF) techniques. It has been observed that the presence and relative concentrations of trace elements in different kind of gallstones (cholesterol and pigment gallstones) can easily be determined using LIBS technique. From the experiments carried out on gallstones for trace elemental mapping and detection, it was found that LIBS is a robust tool for such biomedical applications. The stone samples studied in the present paper were classified using the Fourier transform infrared (FTIR) spectroscopy. WD-XRF spectroscopy has been applied for the qualitative and quantitative analysis of major and trace elements present in the gallstone which was compared with the LIBS data. The results obtained in the present paper show interesting prospects for LIBS and WD-XRF to study cholelithiasis better.

摘要

激光诱导击穿光谱法(LIBS)是一种新兴的分析技术,具有诸多优点,如快速、多元素分析、无需特定样品制备要求、无损及通用性强等。由于可应用于包括生物材料在内的多种材料,它已被证明是一种强大的元素分析工具,备受关注。在本文中,我们使用LIBS和波长色散X射线荧光光谱法(WD-XRF)对本质上具有异质性的胆结石进行了光谱研究。据观察,使用LIBS技术可以轻松测定不同类型胆结石(胆固醇结石和色素结石)中微量元素的存在及相对浓度。通过对胆结石进行微量元素映射和检测的实验发现,LIBS是用于此类生物医学应用的强大工具。本文研究的结石样品使用傅里叶变换红外光谱法(FTIR)进行了分类。WD-XRF光谱法已用于胆结石中主要和微量元素的定性和定量分析,并与LIBS数据进行了比较。本文获得的结果显示了LIBS和WD-XRF在更好地研究胆石症方面的有趣前景。

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