Novel SAW CWA Detector Using Temperature Programmed Desorption

Fahim, Fahim; Mainuddin, Mainuddin; Mittal, Upendra; Kumar, Jitender; Nimal, A.T.

doi:10.1109/jsen.2020.3042766

Cited by 13 publications

(8 citation statements)

References 40 publications

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“…A new approach to the detection of CWA vapors (including blister agents) using SAW sensors was presented in the work [ 75 ]. In this case, a measurement system with an uncoated SAW resonator was presented.…”

Section: Detection Of Blister Agents and Their Simulants Using Acoust...mentioning

confidence: 99%

“… Application of the uncoated SAW sensor with temperature programmed desorption for CWA simulants detection: ( a ) changes in the resonant frequency of the sensor related to the various stages of the device operation; ( b ) the sensor responses resulting from the detection of the CEES, DMMP, and MS [ 75 ]. Reprinted with permission from [ 75 ]. Copyright 2021 IEEE.…”

Section: Figurementioning

confidence: 99%

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Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants

Grabka

Witkiewicz

Jasek

et al. 2022

Sensors

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On-site detection and initial identification of chemical warfare agents (CWAs) remain difficult despite the many available devices designed for this type of analysis. Devices using well-established analytical techniques such as ion mobility spectrometry, gas chromatography coupled with mass spectrometry, or flame photometry, in addition to unquestionable advantages, also have some limitations (complexity, high unit cost, lack of selectivity). One of the emerging techniques of CWA detection is based on acoustic wave sensors, among which surface acoustic wave (SAW) devices and quartz crystal microbalances (QCM) are of particular importance. These devices allow for the construction of undemanding and affordable gas sensors whose selectivity, sensitivity, and other metrological parameters can be tailored by application of particular coating material. This review article presents the current state of knowledge and achievements in the field of SAW and QCM-based gas sensors used for the detection of blister agents as well as simulants of these substances. The scope of the review covers the detection of blister agents and their simulants only, as in the available literature no similar paper was found, in contrast to the detection of nerve agents. The article includes description of the principles of operation of acoustic wave sensors, a critical review of individual studies and solutions, and discusses development prospects of this analytical technique in the field of blister agent detection.

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Section: Detection Of Blister Agents and Their Simulants Using Acoust...mentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants

Grabka

Witkiewicz

Jasek

et al. 2022

Sensors

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“…78 Primjer budućeg razvoja tih detektora pokazuje i istraživanje Fahima i sur., koji razvijaju detektor na osnovi temperaturno programirane desorpcije jer svaki spoj ima specifičnu desorpciju neovisno o njegovoj koncentraciji. 79 Postoji i fotoakustična (engl. photoacoustic, PA) SAW detekcija (SAW-PA) u kojoj se najčešće upotrebljavaju (pulsirajući) laserski izvori svijetlosti, no mogu se upotrebljavati i nelaserski izvori.…”

Section: Površinski Akustični Valunclassified

Tehnologije koje se primjenjuju za terensku detekciju bojnih otrova: II. dio – Detektori nove generacije

Cetina¹,

Tušek²,

Ključarić³

2022

Kemija U Industriji

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Shortly after introduction of commercial automatic chemical detectors, mostly based on ion mobility spectrometry technology, at the end of 20 th century field devices using other chemical detection techniques (FTIR, Raman, GC-MS, surface acoustic wave, photoacoustic, electrochemical, biosensor and others) were developed. Among these techniques, portable GC-MS detectors provide very reliable qualitative and quantitative chemical analysis, but high cost of these devices, the complexity of operating with them and the complexity of sample preparation for analysis present a problem. Some chemical detection technologies cannot be used for the development of a reliable hand-held chemical detector, and not a single technique, for the time being, allows the development of a universal chemical detector. A potential solution is the development of a multi-sensor device that compensates negative sides of each of the sensors. This paper provides an overview of commercially available chemical detectors based on new generation detection technologies and an overview of scientific research focused on further development of detection with simpler, more reliable and preferably cheaper solutions is given.

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“…Both the spectral and mass data can be obtained from the frequency detuning of the NEMS resonator. The resulting time-resolved IR spectra can readily be decomposed by singular value decomposition (SVD) and a global analysis adapted from the field of ultrafast spectroscopy. − Additionally, the mass data allow for the simultaneous study of the components’ desorption dynamics as has been demonstrated with NEMS paddle resonators or surface acoustic wave detectors . As a demonstration of NEMS-IR-TD, binary mixtures of two chemically similar compounds, caffeine and theobromine, were analyzed with limits of detection of 5.7 and 4.9 pg, respectively (∼30 fmol).…”

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confidence: 99%

“… 26 − 29 Additionally, the mass data allow for the simultaneous study of the components’ desorption dynamics as has been demonstrated with NEMS paddle resonators 30 or surface acoustic wave detectors. 31 As a demonstration of NEMS-IR-TD, binary mixtures of two chemically similar compounds, caffeine and theobromine, were analyzed with limits of detection of 5.7 and 4.9 pg, respectively (∼30 fmol). In contrast to hyphenation, in situ separation eliminates the necessity to transfer the sample from the separation device to the detection device, minimizing sample losses, dilution, and contamination.…”

mentioning

confidence: 99%

Nanoelectromechanical Infrared Spectroscopy with In Situ Separation by Thermal Desorption: NEMS-IR-TD

et al. 2023

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We present a novel method for the quantitative analysis of mixtures of semivolatile chemical compounds. For the first time, thermal desorption is integrated directly with nanoelectromechanical infrared spectroscopy (NEMS-IR-TD). In this new technique, an analyte mixture is deposited via nebulization on the surface of a NEMS sensor and subsequently desorbed using heating under vacuum. The desorption process is monitored in situ via infrared spectroscopy and thermogravimetric analysis. The resulting spectro-temporal maps allow for selective identification and analysis of the mixture. In addition, the corresponding thermogravimetric data allow for analysis of the desorption dynamics of the mixture components. As a demonstration, caffeine and theobromine were selectively identified and quantified from a mixture with a detection limit of less than 6 pg (about 30 fmol). With its exceptional sensitivity, NEMS-IR-TD allows for the analysis of low abundance and complex analytes with potential applications ranging from environmental sensing to life sciences.

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Novel SAW CWA Detector Using Temperature Programmed Desorption

Cited by 13 publications

References 40 publications

Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants

Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants

Tehnologije koje se primjenjuju za terensku detekciju bojnih otrova: II. dio – Detektori nove generacije

Nanoelectromechanical Infrared Spectroscopy with In Situ Separation by Thermal Desorption: NEMS-IR-TD

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