电子鼻
气味
甲醛
纳米复合材料
污染
材料科学
制浆造纸工业
食品科学
环境科学
化学
纳米技术
生物
有机化学
工程类
生态学
作者
Yu Thazin,Tanthip Eamsa-ard,Theerapat Pobkrut,Teerakiat Kerdcharoen
标识
DOI:10.1109/icce-asia46551.2019.8941601
摘要
The aim of this work is to develop an electronic nose (e-nose) system for the detection of toxic formaldehyde as a response to illegal addition of formalin into foods in the markets and food processing industries. In this work, nanocomposites of 0-phenylenediamine (OPD) with different functionalized single-walled carbon nanotubes (f-SWCNTs) were used as gas sensing materials. The gas sensors have been tested to perceive the individual response to different volatile organic compounds (VOCs). Since they showed the highest response to formaldehyde which is the main component in formalin solution, the gas sensor array is appropriate for the detection of food contamination due to formalin. By setting up two conditions, namely non-treatment and formalin treatment to raw chicken, shrimp and tofu, as well as shrimps with different concentrations of formalin treatment, the odor associated with those conditions was investigated by e-nose. Discrimination and analysis of non-treatment (natural) and formalin contaminated samples were analyzed by the principal component analysis (PCA). Our findings support the integration of nanocomposite gas sensors into e-nose as an advantageous tool for food safety applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI