Optimization of Laser-Induced Breakdown Spectroscopy Parameters for Phosphorus Detection in Water Using Orthogonal Experiment
10.19756/j.issn.0253-3820.251182
- VernacularTitle:正交试验在激光诱导击穿光谱测定水中磷实验参数优化中的应用研究
- Author:
Xin-Yan YANG
1
;
Xin WANG
;
Wen-Wen ZHOU
;
Yi-Heng LI
;
Peng ZHU
;
Bin WANG
;
Xian-Feng ZHENG
Author Information
1. 安徽师范大学物理与电子信息学院,光电信息材料功能调控与应用安徽省重点实验室,芜湖 241002
- Keywords:
Laser-induced breakdown spectroscopy;
Plasma amplification;
Orthogonal experiment;
Parameters;
Phosphorus
- From:
Chinese Journal of Analytical Chemistry
2025;53(11):1921-1930
- CountryChina
- Language:Chinese
-
Abstract:
Aerosol-assisted plasma amplification laser-induced breakdown spectroscopy(LIBS)was employed for phosphorus detection in water.To address the multivariate coupling effects in LIBS and nebulization sampling system,an orthogonal experiment was employed to systematically optimize the key experimental parameters.Using the orthogonal experimental design,the parametric effects of laser energy(output voltage),signal acquisition delay,liquid velocity,and gas velocity on the signal to background ratio(SBR)of P I 213.618 nm were evaluated,and the optimal conditions were achieved,including laser energy of 86 mJ,delay time of 3 μs,gas velocity of 1.05 mL/min,and liquid velocity of 60 μL/min,which were in agreement with the control-variable optimization results.Moreover,the SBR response trends at P I 213.618 nm with all experimental parameters was strong in consistency with control-variable optimization results,which demonstrated the validity of the orthogonal array experimental design.This study established an efficient and accurate parameter optimization methodology for complex LIBS systems,significantly advancing the application of LIBS in environmental monitoring.
