Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

Szulczyński, Bartosz; Gębicki, Jacek

doi:10.3390/environments4010021

Cited by 213 publications

(169 citation statements)

References 83 publications

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“…This excitation (sensor response in the form of analytically useful signal) occurs in every sensor with different extent. Such excitation yields characteristic set of signals from particular sensors called a response vector of sensor matrix or electronic nose [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Szulczyński

Dymerski

Gębicki

et al. 2018

E3S Web of Conferences

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Abstract. The paper describes an operation principle of odour nuisance monitoring network in a city agglomeration. Moreover, it presents the results of investigation on ambient air quality with respect to odour obtained during six-month period. The investigation was carried out using a network comprised of six prototypes of electronic nose and Nasal Ranger field olfactometers employed as a reference method. The monitoring network consisted of two measurement stations localized in a vicinity of crude oil processing plant and four stations localized near the main emitters of volatile odorous compounds such as sewage treatment plant, municipal landfill, phosphatic fertilizer production plant. The electronic nose prototype was equipped with a set of six semiconductor sensors by FIGARO Co. and one PID-type sensor. The field olfactometers were utilized for determination of mean concentration of odorants and for calibration of the electronic nose prototypes in order to provide their proper operation. Mean monthly values of odour concentration depended on the site of measurement and on meteorological parameters. They were within 0 -6.0 ou/m 3 range. Performed investigations revealed the possibility of electronic nose instrument application as a tool for monitoring of odour nuisance.

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Section: Introductionmentioning

confidence: 99%

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Szulczyński

Dymerski

Gębicki

et al. 2018

E3S Web of Conferences

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“…In terms of construction, they are equipped with a set of several chemical gas sensors. The commercially available volatile organic compounds sensors are the most commonly used sensor types [8,9]. E-noses in their functioning resemble the sense of human smell ( Figure 1).…”

Section: Electronic Nosementioning

confidence: 99%

“…Previous studies have shown that the theoretical dependence (2) is linear [8]. For this reason, a multiple linear regression model (3) was proposed combining the odour intensity with the electronic nose sensor signals:…”

Section: Electronic Nosementioning

confidence: 99%

Application of fuzzy logic to determine the odour intensity of model gas mixtures using electronic nose

Szulczyński

Gębicki

Namieśnik

2018

E3S Web of Conferences

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Abstract. The paper presents the possibility of application of fuzzy logic to determine the odour intensity of model, ternary gas mixtures (α-pinene, toluene and triethylamine) using electronic nose prototype. The results obtained using fuzzy logic algorithms were compared with the values obtained using multiple linear regression (MLR) model and sensory analysis. As the results of the studies, it was found the electronic nose prototype along with the fuzzy logic pattern recognition system can be successfully used to estimate the odour intensity of tested gas mixtures. The correctness of the results obtained using fuzzy logic was equal to 68%.

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“…The optical properties measured can be absorbance, reflectance, luminescence, light polarization, Raman and others. Optical sensors have found many applications in various fields, including biomedical, clinical, environmental monitoring and process controlling [12][13][14][15][16][17][18]. They are an attractive analytical tool, whenever continuous monitoring and real-time information is desired.…”

Section: Optical Sensorsmentioning

confidence: 99%

Mn-Doped ZnSe Quantum Dots as Fluorimetric Mercury Sensor

Parani¹,

Tsolekile²,

May³

et al. 2018

Nonmagnetic and Magnetic Quantum Dots

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Quantum dots (QDs), because of their exciting optical properties, have been explored as alternative fluorescent sensors to conventional organic fluorophores which are routinely employed for the detection of various analytes via fluorometry. QD probes can detect toxic metal ions, anions, organic molecules with good selectivity and sensitivity. This chapter investigates the synthesis of Mn-doped ZnSe QDs using nucleation-doping strategy. The as-synthesized QDs were characterized by various analytical tools such as ultravioletvisible (UV-vis) absorption, photoluminescence (PL) spectroscopy, X-ray diffractometry (XRD) and transmission electron microscopy (TEM). It was found that Mn doping of QDs significantly increases the PL intensity. The PL of the resulting QDs was examined in the presence of different metal ions to check its selective response. Among the various metal . Thus, the present Mn-doped ZnSe QDs represent a simple, non-toxic fluorescent probe for the qualitative and quantitative detection of mercury ions in aqueous samples.

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Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

Cited by 213 publications

References 83 publications

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Application of fuzzy logic to determine the odour intensity of model gas mixtures using electronic nose

Mn-Doped ZnSe Quantum Dots as Fluorimetric Mercury Sensor

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