Virtual Sensor Array Based on Butterworth–Van Dyke Equivalent Model of QCM for Selective Detection of Volatile Organic Compounds

2021 ◽  
Author(s):  
Dongsheng Li ◽  
Zihao Xie ◽  
Mengjiao Qu ◽  
Qian Zhang ◽  
Yongqing Fu ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensor Array ◽  
Equivalent Model ◽  
Selective Detection ◽  
Virtual Sensor ◽  
Volatile Organic

scholarly journals Selective Detection of Target Volatile Organic Compounds in Contaminated Air Using Sensor Array with Machine Learning: Aging Notes and Mold Smells in Simulated Automobile Interior Contaminant Gases

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2687
Author(s):  
Toshio Itoh ◽  
Yutaro Koyama ◽  
Woosuck Shin ◽  
Takafumi Akamatsu ◽  
Akihiro Tsuruta ◽  
...  
Keyword(s):  
Machine Learning ◽  
Random Forest ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensor Array ◽  
Selective Detection ◽  
K Nearest Neighbor ◽  
Linear Discriminant ◽  
Age Related ◽  
Volatile Organic

We investigated the selective detection of target volatile organic compounds (VOCs) which are age-related body odors (namely, 2-nonenal, pelargonic acid, and diacetyl) and a fungal odor (namely, acetic acid) in the presence of interference VOCs from car interiors (namely, n-decane, and butyl acetate). We used eight semiconductive gas sensors as a sensor array; analyzing their signals using machine learning; principal-component analysis (PCA), and linear-discriminant analysis (LDA) as dimensionality-reduction methods; k-nearest-neighbor (kNN) classification to evaluate the accuracy of target-gas determination; and random forest and ReliefF feature selections to choose appropriate sensors from our sensor array. PCA and LDA scores from the sensor responses to each target gas with contaminant gases were generally within the area of each target gas; hence; discrimination between each target gas was nearly achieved. Random forest and ReliefF efficiently reduced the required number of sensors, and kNN verified the quality of target-gas discrimination by each sensor set.

Flexible virtual sensor array based on laser-induced graphene and MXene for detecting volatile organic compounds in human breath

The Analyst ◽  
2021 ◽  
Author(s):  
Dongsheng Li ◽  
Yuzhou Shao ◽  
Qian Zhang ◽  
Mengjiao Qu ◽  
Jianfeng Ping ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Early Diagnosis ◽  
Organic Compounds ◽  
Sensor Array ◽  
Human Breath ◽  
Accurate Analysis ◽  
Virtual Sensor ◽  
Volatile Organic ◽  
Diagnosis Of Diseases

Detecting volatile organic compounds (VOCs) in human breath is critical for early diagnosis of diseases. Good selectivity of VOCs sensors is crucial for accurate analysis of VOCs biomarkers in human...

scholarly journals Fast and selective detection of volatile organic compounds using a novel pseudo spin-ladder compound CaCu2O3

2020 ◽  
Vol 1 (7) ◽  
pp. 2368-2379
Author(s):  
N. Lavanya ◽  
G. Veerapandi ◽  
S. G. Leonardi ◽  
N. Donato ◽  
G. Neri ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Volatile Organic Compounds ◽  
Gas Sensor ◽  
Organic Compounds ◽  
Spin Ladder ◽  
Selective Detection ◽  
Volatile Organic ◽  
First Time

A novel pseudo spin-ladder CaCu2O3 compound (2-leg) based conductometric gas sensor has been proposed, for the first time, for the detection of volatile organic compounds (VOCs); (a) the proposed reaction mechanism in air, and (b) in the presence of acetone and ethanol.

Identification of plastic toys contaminated with volatile organic compounds using QCM gas sensor array

Talanta ◽  
2020 ◽  
Vol 211 ◽  
pp. 120701 ◽  
Author(s):  
E. Oleneva ◽  
T. Kuchmenko ◽  
E. Drozdova ◽  
A. Legin ◽  
D. Kirsanov
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Sensor ◽  
Organic Compounds ◽  
Sensor Array ◽  
Gas Sensor Array ◽  
Volatile Organic ◽  
Plastic Toys

A fluorometric paper-based sensor array for the discrimination of volatile organic compounds (VOCs) with novel salicylidene derivatives

2018 ◽  
Vol 159 ◽  
pp. 378-383 ◽  
Author(s):  
Thiti Jarangdet ◽  
Kornkanya Pratumyot ◽  
Kittiwat Srikittiwanna ◽  
Wijitar Dungchai ◽  
Withawat Mingvanish ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensor Array ◽  
Volatile Organic

In-Situ Analysis of Volatile Organic Compounds in Biogas Fermentation Processes Using a Metal Oxide Gas Sensor Array

2020 ◽  
Vol MA2020-01 (28) ◽  
pp. 2153-2153
Author(s):  
Binayak Ojha ◽  
Divyashree Narayana ◽  
Margarita Aleksandrova ◽  
Heinz Kohler ◽  
Matthias Schwotzer ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Metal Oxide ◽  
Gas Sensor ◽  
Organic Compounds ◽  
Sensor Array ◽  
Fermentation Processes ◽  
Gas Sensor Array ◽  
Volatile Organic ◽  
Metal Oxide Gas Sensor
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