« Previous AbstractEffects of combined carnosine and ultra-high pressure on the inhibition of fishy off-odor of snakehead fillets and the possible mechanism    Next AbstractComparative Study on the Volatile Organic Compounds and Characteristic Flavor Fingerprints of Five Varieties of Walnut Oil in Northwest China Using Using Headspace Gas Chromatography-Ion Mobility Spectrometry »

J Hazard Mater

Title:		A non-porous Fe(II) complex for the colorimetric detection of hazardous gases and the monitoring of meat freshness
Author(s):		Sun L; Rotaru A; Garcia Y;
Address:		"Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Universite catholique de Louvain, Louvain-la-Neuve 1348, Belgium. Department of Electrical Engineering and Computer Science and MANSiD Research Center, 'Stefan cel Mare' University, University Street, 13, Suceava 720229, Romania. Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Universite catholique de Louvain, Louvain-la-Neuve 1348, Belgium. Electronic address: yann.garcia@uclouvain.be"
Journal Title:		J Hazard Mater
Year:		2022
Volume:		20220615
Issue:
Page Number:		129364 -
DOI:		10.1016/j.jhazmat.2022.129364
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Food quality monitoring and freshness assessment are critical for ensuring food safety at a large scale. Ammonia is used as an important indicator of protein rich food spoilage state. However, current ammonia gas sensors suffer from insufficient sensitivity and selectivity, or sophisticated instrumentation, hindering their practical application in in-situ and real-time food quality monitoring. To overcome such limitations, an innovative nonporous colorimetric complex 1 has been synthesized and investigated for the detection of NH(3(g)) and its volatile organic derivatives including aliphatic amines, 1,2-diaminopropane((g)), isobutylamine((g)) and ethylenediamine((g)), etc. The sensor operates colorimetrically at room temperature without energy input, with a detection limit to ammonia((g)) of 105 ppb, and show excellent reusability. The colorimetric detection mechanism involves a partial spin state change of Fe(II) ions upon exposure to amines in the gas phase. In addition, the complex was utilized as real-time monitoring of meat freshness using a smartphone. Thus, chemosensor 1 is considered as a ground breaking new-generation portable electronic nose for vapors of volatile organic compounds discrimination at room temperature"
Keywords:		Amines Ammonia *Colorimetry Ferrous Compounds *Gases Meat/analysis Ammonia gas sensor Cold channel control Colorimetric complexes Meat freshness assessment Sensitivity and selectivity;
Notes:		"MedlineSun, Li Rotaru, Aurelian Garcia, Yann eng Research Support, Non-U.S. Gov't Netherlands 2022/06/22 J Hazard Mater. 2022 Sep 5; 437:129364. doi: 10.1016/j.jhazmat.2022.129364. Epub 2022 Jun 15"