In situ spectroscopic identification of the six types of asbestos
| Autor: | Frank J. M. Rutten, Vladimir L. Zholobenko, Amy Holmes, Aleksey Zholobenko |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
In situ
021110 strategic defence & security studies Environmental Engineering Materials science Health Toxicology and Mutagenesis Near-infrared spectroscopy 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences medicine.disease_cause 01 natural sciences Pollution Asbestos Raman microspectroscopy Construction industry medicine Environmental Chemistry QD Computational analysis Objective evaluation Waste Management and Disposal Asbestos identification 0105 earth and related environmental sciences Remote sensing |
| ISSN: | 0304-3894 |
| Popis: | Exposure to asbestos fibres is related to a number of severe lung diseases, and therefore, rapid, accurate and reliable in situ or on-site asbestos detection in real-life samples is of considerable importance. This work presents a comprehensive investigation of all six types of asbestos by mid-infrared ATR–FTIR, NIR spectroscopy and Raman microspectroscopy. Our studies demonstrate that for practical applications, NIR spectroscopy is potentially the most powerful method for asbestos identification in materials utilised by the construction industry. By focusing on the narrow spectral region, 7300–7000 cm−1 (~1370–1430 nm, overtones of O‒H vibrations), which is highly specific to these materials, and optimising the sensitivity and resolution of the instrumentation, we have been able to discriminate and identify each of the six types of asbestos with the level of detection significantly better than 1 wt%. Furthermore, straightforward computational analysis has allowed for automated objective evaluation of the spectroscopic data. |
| Databáze: | OpenAIRE |
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