Journal
CHEMICAL PHYSICS LETTERS
Volume 787, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2021.139283
Keywords
Machine learning; Neural networks; Portable Raman spectrometer; Seized drugs
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This study explored the use of machine learning algorithms to classify compounds, and demonstrated high accuracy in the experiments. Incorporating machine learning algorithms in portable Raman instruments can improve the detection accuracy of unknown substances.
Portable Raman instruments provide quick, nondestructive analysis of organic and inorganic compounds, making it widely applicable in various disciplines. However, the instrument's accuracy when analyzing pure, or multiple component mixtures is still an aspect that needs improvement. This study explored machine learning algorithms to classify single compounds, binary, ternary, and quaternary mixtures by the compound name, and the com-pound's class, using seized drugs and common diluents as a model. The accuracies were >= 93% for most pure, binary mixtures, and quaternary mixtures algorithms. Therefore, incorporating machine learning algorithms in portable instruments, can improve the detection of unknown substances with high accuracies.
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