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Titolo:
Biosensor for detecting odorous compounds
Autore:
Lin, CF; Wu, TZ; Hao, OJ; Lin, YC; Rau, YR;
Indirizzi:
Natl Taiwan Univ, Grad Inst Environm Engn, Taipei 10764, Taiwan Natl Taiwan Univ Taipei Taiwan 10764 Environm Engn, Taipei 10764, Taiwan Natl Dong Hwa Univ, Inst Biotechnol, Hua Lien, Taiwan Natl Dong Hwa Univ Hua Lien Taiwan v, Inst Biotechnol, Hua Lien, Taiwan Univ Maryland, Dept Civil & Environm Engn, College Pk, MD 20742 USA Univ Maryland College Pk MD USA 20742 ronm Engn, College Pk, MD 20742 USA
Titolo Testata:
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE
fascicolo: 5, volume: 126, anno: 2000,
pagine: 446 - 450
SICI:
0733-9372(200005)126:5<446:BFDOC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
NOSES; ARRAY; GAS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Lin, CF Natl Taiwan Univ, Grad Inst Environm Engn, Taipei 10764, Taiwan Natl Taiwan Univ Taipei Taiwan 10764 Engn, Taipei 10764, Taiwan
Citazione:
C.F. Lin et al., "Biosensor for detecting odorous compounds", J ENV ENG, 126(5), 2000, pp. 446-450

Abstract

The odor quantification of any environmental sample by use of either paneldecisions or analytical instruments is difficult. This study employed a sensor system to detect different odorants. The system consisted of an individual sensor or an array of multisensors in which different synthesized protein analogs were coated onto the surface of piezoelectric electrodes. By monitoring the change in the resonant frequency, the concentration of the specific gas was quantified. The targeted odor pollutants included volatile compounds of ammonia, mercaptoethanol, methyl amine, acetic acid, and chlorobenzene as well as gaseous compounds of ammonia and methyl amine. The results indicate that there is a linear relationship between sensor responses andcompound concentrations. These sensors can detect compound concentrations in the low ppmv ranges. The response time is rapid. However, the system is not completely reversible-i.e., sensor response did not overt to its original value because of incomplete desorption with odorless air. Nevertheless, the response of the module forms a unique fingerprint for each individual compound and for mixed compounds. But reliability, stability, durability, and implementation of the system await further investigation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 22:53:38