Detection of Silver Jewelry with Orthogonal Double-Pulse LIBS

Abstract:

A comparative study of single-and double-pulse laser induced breakdown spectrometry (LIBS) was carried out to detect the silver element in silver jewelry samples. One Nd:YAG was adopted in the experiment to generate two pulses which were set in an orthogonal configuration. The results show that, for double-laser LIBS, average diameter (3μm) of craters on the sample surface is much smaller and the intensity of silver emission signals are magnified by a factor of 40 compared with the single-pulse LIBS. Due to the superiority in high sensitivity and low energy consumption, double-pulse LIBS presents a bright application prospect in rapid on-site undamaged analysis of precious metal jewelry.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 752-756
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.752
• Online since: June 2013
• Authors: Yang Lou, Qi Zhou, Run Hua Li
• Keywords: Double-Pulse Laser LIBS, Silver, Spectrum Analysis

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