A laser-induced fluorescent detector for pesticide residue detection based on the spectral recognition method

2018 ◽  
Vol 10 (46) ◽  
pp. 5507-5515 ◽  
Author(s):  
Shixian Zhao ◽  
Jincan Lei ◽  
Danqun Huo ◽  
Changjun Hou ◽  
Ping Yang ◽  
...  
Keyword(s):  
Pesticide Residue ◽  
Sensor Array ◽  
Fluorescent Sensor ◽  
Recognition Method ◽  
Residue Detection ◽  
Spectral Recognition

In the present study, a laser-induced fluorescent (LIF) detector was developed for pesticide residue detection based on a microfluidic-based fluorescent sensor array (MFSA).

Nano Sensor Using One Dimensional Porous Indium Oxide and Pattern Recognition Method of Its Electronic Information

2021 ◽  
Vol 16 (2) ◽  
pp. 255-263
Author(s):  
Qinghong Wu ◽  
Wanying Zhang
Keyword(s):  
Pattern Recognition ◽  
Indium Oxide ◽  
Electronic Nose ◽  
Sensor Array ◽  
Dimensional Space ◽  
Ordinary Least Squares ◽  
Acquisition Time ◽  
Pattern Recognition Method ◽  
Recognition Method ◽  
Linear Discriminant

Due to its high sensitivity, low price and fast response speed, gas sensors based on metal oxide nanomate-rials have attracted many researchers to modify and explore the materials. First, pure indium oxide (In2O3) nanotubes (NTs)/porous NTs (PNTs) and Ho doped In2O3 NTs/PNTs are prepared by electrospinning and calcination. Then, based on the prepared nanomaterials, the 6-channel sensor array is obtained and used in the electronic nose sensing system for wine product identification. The system obtains the frequency signals of different liquor products by means of 6-channel sensor array, analyzes the extracted electronic signal characteristic information by means of ordinary least squares, and introduces the pattern recognition method of moving average and linear discriminant to identify liquor products. In the experiment, compared with pure In2O3 NTs sensor, pure In2O3 PNTs sensor has higher sensitivity to 100 ppm ethanol gas, and the sensitivity is further improved after mixing Ho. Among them, 6 mol% Ho + In2O3 PNTs have the highest sensitivity and the shortest response time; based on the electronic nose system composed of prepared nanomaterial sensor array, frequency signals of different Wu Liang Ye wines are collected. With the extension of acquisition time, the corresponding frequency first decreases and then becomes stable; the extracted liquor characteristic signal is projected into two-dimensional space and three-dimensional space. The results show that the pattern recognition system based on this method can extract the characteristic signals of liquor products and distinguish them.

scholarly journals Discrimination of saturated alkanes and relevant volatile compounds via the utilization of a conceptual fluorescent sensor array based on organoboron-containing polymers

2018 ◽  
Vol 9 (7) ◽  
pp. 1892-1901 ◽  
Author(s):  
Yanyu Qi ◽  
Wenjun Xu ◽  
Rui Kang ◽  
Nannan Ding ◽  
Yelei Wang ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Sensor Array ◽  
Fluorescent Sensor ◽  
Fast Detection ◽  
Volatile Solvents

A conceptual sensor array for the efficient discrimination and fast detection of saturated alkanes and commonly found volatile solvents is reported.

Flexible 2D nanocellulose-based SERS substrate for pesticide residue detection

2021 ◽  
pp. 118890
Author(s):  
Jingjing Wu ◽  
Jianfeng Xi ◽  
Haibo Chen ◽  
Sijie Li ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Pesticide Residue ◽  
Sers Substrate ◽  
Residue Detection

Fluorescent sensor array for separation-free dopamine analogue discrimination via polyethyleneimine-mediated self-polymerization reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12889-12897 ◽  
Author(s):  
Ye Sun ◽  
Fengniu Lu ◽  
Hongwei Yang ◽  
Caifeng Ding ◽  
Zhiqin Yuan ◽  
...  
Keyword(s):  
Sensor Array ◽  
Fluorescent Sensor ◽  
Polymerization Reaction

A fluorescent sensor array for separation-free dopamine analogue discrimination based on hyperbranched polyethyleneimine-mediated self-polymerization reaction is presented.

Multichannel fluorescent sensor array for discrimination of thiols using carbon dot–metal ion pairs

2018 ◽  
Vol 266 ◽  
pp. 553-560 ◽  
Author(s):  
Shuai Chen ◽  
Chun-Hua Xu ◽  
Yong-Liang Yu ◽  
Jian-Hua Wang
Keyword(s):  
Metal Ion ◽  
Sensor Array ◽  
Fluorescent Sensor ◽  
Ion Pairs ◽  
Carbon Dot

Identification and Quantification of Bacterial Pathogens with a Ratiometric Fluorescent Sensor Array

2020 ◽  
Vol MA2020-01 (27) ◽  
pp. 1985-1985
Author(s):  
Denis Svechkarev ◽  
Marat R. Sadykov ◽  
Lucas J. Houser ◽  
Kenneth W. Bayles ◽  
Aaron M. Mohs
Keyword(s):  
Sensor Array ◽  
Fluorescent Sensor ◽  
Bacterial Pathogens ◽  
Identification And Quantification

Aptamer-Based Fluorescent Sensor Array for Multiplexed Detection of Cyanotoxins on a Smartphone

2019 ◽  
Vol 91 (16) ◽  
pp. 10448-10457 ◽  
Author(s):  
Zheng Li ◽  
Shengwei Zhang ◽  
Tao Yu ◽  
Zhiming Dai ◽  
Qingshan Wei
Keyword(s):  
Sensor Array ◽  
Fluorescent Sensor ◽  
Multiplexed Detection

Polymer induced one-step interfacial self-assembly method for the fabrication of flexible, robust and free-standing SERS substrates for rapid on-site detection of pesticide residues

Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12829-12836 ◽  
Author(s):  
Peng Wu ◽  
Lu-Bin Zhong ◽  
Qing Liu ◽  
Xi Zhou ◽  
Yu-Ming Zheng
Keyword(s):  
Pesticide Residue ◽  
Self Assembly ◽  
Pesticide Residues ◽  
Free Standing ◽  
Sers Substrates ◽  
Residue Detection ◽  
Assembly Method ◽  
One Step

A polymer induced one-step interfacial self-assembly method was developed to fabricate flexible, robust and free-standing SERS substrates for rapid pesticide residue detection.

Single gold nanocluster probe-based fluorescent sensor array for heavy metal ion discrimination

2020 ◽  
pp. 124259
Author(s):  
Xiang-Ping Zhang ◽  
Kai-Yuan Huang ◽  
Shao-Bin He ◽  
Hua-Ping Peng ◽  
Xing-Hua Xia ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Sensor Array ◽  
Fluorescent Sensor ◽  
Heavy Metal Ion ◽  
Gold Nanocluster
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