Analysis and Dynamic Monitoring of Indoor Air Quality Based on Laser-Induced Breakdown Spectroscopy and Machine Learning
نویسندگان
چکیده
The air quality of the living area influences human health to a certain extent. Therefore, it is particularly important detect indoor air. However, traditional detection methods mainly depend on chemical analysis, which has long been criticized for its high time cost. In this research, rapid method environment using laser-induced breakdown spectroscopy (LIBS) and machine learning was proposed. Four common scenes were simulated, including burning carbon, incense, spraying perfume hot shower often led changes. Two steps spectral measurements algorithm analysis used in experiment. Moreover, proposed found be effective distinguishing different kinds aerosols presenting sensitivity compositions. paper, signal isolated by forest, so singular values filtered out. Meanwhile, spectra scenarios analyzed via principal component (PCA), classified K-Nearest Neighbor (KNN) with an accuracy 99.2%. based establishment high-precision quantitative model, back propagation (BP) neural network introduced improve robustness environment. results show that taking method, dynamic prediction elements concentration can realized, recognition 96.5%.
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Laser Induced Breakdown Spectroscopy
Laser-induced breakdown spectroscopy (LIBS) is a powerful analytical technique that can be used for the detection and characterization of materials. In LIBS, a focused laser beam is used to generate a plasma plume on the surface of solid and liquid samples or inside the sample volume of gases, liquids, and aerosols. Each excited atom in the plasma emits a unique set of spectral lines, particula...
متن کاملLaser Induced Breakdown Spectroscopy
Esta revisão descreve os aspectos fundamentais, a instrumentação, as aplicações e tendências futuras de uma técnica analítica que se encontra em seu estágio de consolidação e que está em vias de estabelecer o seu nicho entre as técnicas espectrofotométricas modernas. A técnica é denominada Espectroscopia de Emissão em Plasma Induzido por Laser (em inglês, Laser Induced Breakdown Spectroscopy, L...
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2022
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors10070259