Communications of the ACM
'E-Nose' Sniffs Out Volatile Organic Compounds
The researchers say that the MOF-based e-nose, shown here, is a simple device for discriminating the three forms of xylene in environmental monitoring and diagnostic health testing.
Credit: Peng Qin
Researchers from Germany's Karlsruhe Institute of Technology and the University of Pittsburgh developed an “electric nose” (e-nose) that can detect mixtures of specific volatile organic compounds through porous metal-organic framework (MOF) films.
The researchers deployed six xylene isomer-adsorptive MOF films in gravimetric sensors, which had different sensitivities to o-xylene, m-xylene, and p-xylene.
They used a machine learning algorithm to analyze the sensor array data, and ascertained mixture composition with 86% accuracy for a 10-ppm mixture and 96% accuracy for a 100-ppm mixture.
The researchers said the e-nose can be used to discriminate between the three forms of xylene in environmental monitoring and diagnostic health testing.
From American Chemical Society
View Full Article
Abstracts Copyright © 2022 SmithBucklin, Washington, DC, USA
No entries found