Title :
Quantitative chemical analysis of submerged solids using calibration-free laser-induced breakdown spectroscopy
Author :
Takahashi, Tatsuro ; Thornton, Blair ; Sato, Takao ; Ohki, Kohichi ; Sakka, Tetsuo
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
Abstract :
The aim of this study is to investigate the application of Calibration-Free Laser-Induced Breakdown Spectroscopy (CF-LIBS) calculations, to determine the composition of metals and minerals submerged in seawater using a long-pulse laser. The compositions of six different brass standard samples submerged in seawater calculated using CF-LIBS showed good agreement with their certified values. For analysis of minerals, we demonstrate the application of CF-LIBS calculations for classification of hydrothermal deposits using a Cu-Pb-Zn diagram. The results suggest that CF-LIBS is applicable for in-situ quantitative analysis of mineral deposits in the marine environment.
Keywords :
atomic emission spectroscopy; minerals; ocean composition; seawater; CF-LIBS; CF-LIBS calculations; Calibration-Free Laser-Induced Breakdown Spectroscopy calculations; Cu-Pb-Zn diagram; brass standard samples; hydrothermal deposit classification; in-situ quantitative analysis; long-pulse laser; marine environment; metal composition; mineral composition; mineral deposits; quantitative chemical analysis; seawater; submerged solids; Chemical lasers; Electric breakdown; Lead; Solids; Spectroscopy; Zinc; LIBS; chemical analysis; in-situ measurement; laser ablation; quantitative analysis;
Conference_Titel :
Oceans - St. John's, 2014
Conference_Location :
St. John´s, NL
Print_ISBN :
978-1-4799-4920-5
DOI :
10.1109/OCEANS.2014.7003114
