研究目的
Investigating the impact of bootstrapping on LIBS data collected by various data acquisition strategies and providing insights into the application of this statistical tool.
研究成果
Bootstrapping primarily affects the standard deviation of the recorded spectra, while barely affecting the mean values, limiting its applicability to specific cases. The collection of single-shot spectra with the application of bootstrapping provided superior signal stability compared to the accumulation of the emission from consecutive shots.
研究不足
The applicability of bootstrapping is limited to specific cases due to its primary effect on the standard deviation of the recorded spectra, while barely affecting the mean values.
1：Experimental Design and Method Selection:
The study investigates the impact of bootstrapping on LIBS data collected by various data acquisition strategies.
2：Sample Selection and Data Sources:
Three metallic samples (stainless steel, bronze, and aluminum) were measured.
3：List of Experimental Equipment and Materials:
A laboratory-based LIBS instrument equipped with a modular interaction chamber, Nd:YAG laser, echelle spectrometer, and EMCCD camera.
4：Experimental Procedures and Operational Workflow:
Samples were measured in two distinct regimes: single-shot and accumulated spectra. Bootstrapping and numerical accumulation were applied to single-shot spectra.
5：Data Analysis Methods:
The quality of emission spectra was evaluated considering four figures of merit: relative standard deviation, signal-to-background ratio, and two signal-to-noise ratios.
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