Comparison Study of Two Commercial Spectrometers for Heavy Metal Analysis of Laser Induced Breakdown Spectroscopy （LIBS）  

作　　者：M.Arab N.Bidin Z.H.Rizvi S.Safie M.A.Alsaedi 

机构地区：[1]Advance Photonics Science Institute,Faculty of Science,Universiti Teknologi Malaysia,81310,Johor Bahru,Johor,Malaysia

出　　处：《Photonic Sensors》2014年第1期63-69,共7页光子传感器（英文版）

摘　　要：The purpose of this paper is to compare the performance of two spectrometers that are manufactured from the same company. In this work, heavy metals like lead Pb and copper Cu in the KBr matrix were analyzed using the laser induced breakdown spectroscopic technique. A Q-switched Nd：YAG laser with 90mJ per pulse operating at the fundamental wavelength of 1064nm and pulse duration of 10 ns was used to generate plasma at the focal region. The important experimental parameters such as the laser energy, integration time, distance between the lens and sample, distance and angle of the optical fiber from the target were optimized. Two spectrometers manufactured by Ocean Optics namely as Maya2000Pro and USB 4000 were employed for anlyzing the spectral lines. The experimental setup and conditions were remained the same for both experiments. The production of spectral lines from each of the interested elements was analyzed and compared with the NIST （National Institute of Standards and Technology） database. The sensitivity, repeatability and limit of detection for each of the systems are discussed in detail.

关 键 词：Heavy metal SPECTROMETER LIBS LOD 

分 类 号：TN24[电子电信—物理电子学] TP216[自动化与计算机技术—检测技术与自动化装置]