Trace level VOC gas detection of developed CNT based micropreconcentrator for breath analysis

2015 ◽  
Author(s):  
Koji Oyama ◽  
Ryohei Komiyama ◽  
Hidetoshi Miyashita ◽  
Sang-Seok Lee ◽  
Jeong-o Lee
Keyword(s):  
Breath Analysis ◽  
Gas Detection ◽  
Trace Level

scholarly journals Trace‐Level, Multi‐Gas Detection for Food Quality Assessment Based on Decorated Silicon Transistor Arrays

2020 ◽  
Vol 32 (21) ◽  
pp. 1908385 ◽  
Author(s):  
Zhen Yuan ◽  
Mallika Bariya ◽  
Hossain M. Fahad ◽  
Jingbo Wu ◽  
Rui Han ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Food Quality ◽  
Gas Detection ◽  
Trace Level ◽  
Silicon Transistor

Highly sensitive, atmospheric pressure operatable sensor based on Au nanoclusters decorated TiO2@Au heterojunction nanorods for trace level NO2 gas detection

2017 ◽  
Vol 28 (13) ◽  
pp. 9738-9748 ◽  
Author(s):  
Dinesh Veeran Ponnuvelu ◽  
Biji Pullithadathil ◽  
Arun K. Prasad ◽  
Sandip Dhara ◽  
Kamruddin Mohamed ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Gas Detection ◽  
Trace Level ◽  
Au Nanoclusters ◽  
Highly Sensitive

scholarly journals 5.4.4 Warfare Gas Detection at Trace Level Using a Multiple SAW Sensor Approach Based on Functionalized Nanodiamond Coatings

2012 ◽  
Author(s):  
Benoit Tard ◽  
Adeline Trouvé ◽  
Emmanuel Scorsone ◽  
Philippe Bergonzo ◽  
Achim Voigt ◽  
...  
Keyword(s):  
Gas Detection ◽  
Trace Level ◽  
Saw Sensor

Design and Development of an Electronic Interface for Gas Detection and Exhaled Breath Analysis in Liquids

2018 ◽  
Vol 18 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Giorgio Pennazza ◽  
Marco Santonico ◽  
Alessandro Zompanti ◽  
Francesca Romana Parente ◽  
Giuseppe Ferri ◽  
...  
Keyword(s):  
Breath Analysis ◽  
Gas Detection ◽  
Exhaled Breath ◽  
Design And Development ◽  
Exhaled Breath Analysis ◽  
Electronic Interface

scholarly journals Terahertz Gas-Phase Spectroscopy Using a Sub-Wavelength Thick Ultrahigh-Q Microresonator

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 3005 ◽  
Author(s):  
Dominik Walter Vogt ◽  
Angus Harvey Jones ◽  
Rainer Leonhardt
Keyword(s):  
Gas Phase ◽  
Water Vapour ◽  
Gas Detection ◽  
Proof Of Concept ◽  
Atmospheric Conditions ◽  
Frequency Range ◽  
Trace Level ◽  
Terahertz Spectrum ◽  
Gas Phase Spectroscopy ◽  
Sub Wavelength

The terahertz spectrum provides tremendous opportunities for broadband gas-phase spectroscopy, as numerous molecules exhibit strong fundamental resonances in the THz frequency range. However, cutting-edge THz gas-phase spectrometer require cumbersome multi-pass gas cells to reach sufficient sensitivity for trace level gas detection. Here, we report on the first demonstration of a THz gas-phase spectrometer using a sub-wavelength thick ultrahigh-Q THz disc microresonator. Leveraging the microresonator’s ultrahigh quality factor in excess of 120,000 as well as the intrinsically large evanescent field, allows for the implementation of a very compact spectrometer without the need for complex multi-pass gas cells. Water vapour concentrations as low as 4 parts per million at atmospheric conditions have been readily detected in proof-of-concept experiments.

Dynamic liquid phase deposition of doped nanostructured PANI tube sensor for trace-level NH3 gas detection

2020 ◽  
Vol 305 ◽  
pp. 127459 ◽  
Author(s):  
Wenqian Zhang ◽  
Guishun Li ◽  
Yuxi Chen ◽  
Shaohua Liu ◽  
Jian Xu ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Detection ◽  
Liquid Phase Deposition ◽  
Trace Level
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