研究目的
Quantification of copper remediation in the Allium cepa L. leaves using electric field assisted laser induced breakdown spectroscopy.
研究成果
The electric field assisted LIBS yields signal enhancement along with an increase in the plasma temperature and electron density. The limit of detection of Cu has been improved to 0.028 mg L-1. It is concluded that using electric field as an added excitation source, the limit of detection of the trace, minor and toxic elements can be improved.
研究不足
The study was conducted under controlled environment, which may not fully replicate natural conditions. The LOD improvement is dependent on the application of an external electric field.
1：Experimental Design and Method Selection:
Laser Induced Breakdown Spectroscopy (LIBS) was used for trace constituents analysis. Atomic Absorption Spectroscopy (AAS) was used for quantitative analysis.
2：Sample Selection and Data Sources:
Allium Cepa L. leaves grown in prepared soil with varying concentrations of copper.
3：List of Experimental Equipment and Materials:
Q-switched Nd:YAG laser, energy meter, optical fiber, spectrometers, CCD detectors, DC power supply, Atomic Absorption Spectroscopy (AAS).
4：Experimental Procedures and Operational Workflow:
Laser beam focused on target surface to produce plasma, plasma radiation collected and analyzed. Electric field applied to enhance emission signals.
5：Data Analysis Methods:
Emission spectra analyzed for copper lines intensity, calibration curve drawn for copper concentration determination.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
