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

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans - St. John's, 2014

Conference_Location

St. John´s, NL

Print_ISBN

978-1-4799-4920-5

Type

conf

DOI

10.1109/OCEANS.2014.7003114

Filename

7003114