Study on Rapid Elemental Analysis of Tibetan Medicine “GTso Thal” by LIBS Technique

VernacularTitle:基于LIBS技术的藏药“佐太”快速元素分析研究＊
Author: Xiaona LIU ; Xinyuan SHI ; Shuaiyun JIA ; Na ZHAO ; Zhisheng WU ; Yanjiang QIAO
Publication Type:Journal Article
Keywords: Tibetan medicine; “GTso Thal”; laser-induced breakdown spectroscopy; elemental analysis
From: World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2582-2585
CountryChina
Language:Chinese
Abstract: Laser-induced breakdown spectroscopy (LIBS) was applied to perform qualitative research on Tibetan medicine “GTso Thal” in order to establish a rapid element analysis method . The Nd: YAG laser with the funda-mental frequency at 1064 nm was used. A high-power laser beam was focused on the surface of the sample. The spectrometer and CCD was used to detect its spectrum signals. Based on the National Institute of Standards and Technology (NIST) database, emission spectrum characteristics were differentiated. The LIBS spectra of “GTso Thal”showed multi-elements including Hg, Ca, Na, As, Fe, Mg, Al, K, Li, Pb, Ag, Au and S. Among them, Hg, Pb, Ag and Au were heavy mental elements. The results demonstrated that LIBS was a viable technique for analysis of Ti-betan medicine “GTso Thal”. LIBS provided reliable elemental analysis on Tibetan medicine “GTso Thal”. The de-tection was real-time, rapid and in situ. It had prospects in the elemental analysis of ethnic medicine study. LIBS had broad application prospects.