Evaluation of Laser-Induced Breakdown Spectroscopy Quantitative Sensing Performance Using a Micro-Droplet Ejection System

Author

Ikezawa, Satoshi ; Wakamatsu, Muneaki ; Pawlat, J. ; Ueda, Toshitsugu

Author_Institution

Waseda Univ., Kitakyushu

fYear

2007

fDate

28-31 Oct. 2007

Firstpage

407

Lastpage

410

Abstract

A new and reliable evaluating method for a laser induced breakdown spectroscopy (LIBS) quantitative measurement using a micro-droplet sample ejection system is introduced. LIBS has been investigated extensively to establish proper chemical analysis of specimens. There is an indefinable boundary which is ablated or not when laser focusing on the sample. Generating micro-droplets from concentration tuned solution, and leading to the correct beam spot area are important for determining the total amount of media in a droplet. The LIBS measures the sodium chloride concentration of a micro-droplet as a quantitative measurement by recording intensity from the sample plasma. As a result, LIBS with the micro-drop ejection system produced greater intensities than the old technique of bulk-liquid measurement based on data from 100 laser pulse shots.

Keywords

chemical analysis; laser-induced breakdown spectroscopy; micro-droplet ejection system; quantitative measurement; Calibration; Cameras; Chemical lasers; Electric breakdown; Laser ablation; Laser modes; Lenses; Optical pulses; Plasma measurements; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2007 IEEE

Conference_Location

Atlanta, GA

ISSN

1930-0395

Print_ISBN

978-1-4244-1261-7

Electronic_ISBN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2007.4388422

Filename

4388422