Determination of carbon monoxide in ambient air using piezoelectric crystal sorption detection

Fung, YS; Wong, Chi-Chun

doi:10.1016/s0003-2670(02)00013-2

Cited by 10 publications

(14 citation statements)

References 30 publications

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“…QCM sensors fabricated with HgO or Ag 2 O coatings utilize their reactions with CO at an elevated temperature to deposit a layer of mercury or silver metal on the surface of the microbalances [ 150 , 151 ]. The metal–organic complex coatings can directly absorb CO from ambient air and change the mass of the microbalances [ 152 , 155 , 156 ].…”

Section: Dissolved Co Measurement Methodsmentioning

confidence: 99%

“…When the piezoelectric material has an oscillation frequency at the MHz level, QCM sensors are highly sensitive in CO measurements with high mass sensitivity [151]. The reported CO sensing coatings in QCM sensors include noble metals (platinum, palladium, and platinum-iridium alloy) [154], volatile metal oxides (HgO and Ag 2 O) [150,151], and various metal-organic complexes, such as the zinc crptand22 ligand complex [152], palladium acetamide complex [155], and nickel phthalocyanine complex [156]. Sensors using noble metals coatings exploit the heat generated from CO oxidation to increase the resonance frequency of the piezoelectric materials [154].…”

Section: Acoustic Wave Sensorsmentioning

confidence: 99%

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Review of Dissolved CO and H2 Measurement Methods for Syngas Fermentation

Dang

Wang

Atiyeh

2021

Sensors

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Syngas fermentation is a promising technique to produce biofuels using syngas obtained through gasified biomass and other carbonaceous materials or collected from industrial CO-rich off-gases. The primary components of syngas, carbon monoxide (CO) and hydrogen (H2), are converted to alcohols and other chemicals through an anaerobic fermentation process by acetogenic bacteria. Dissolved CO and H2 concentrations in fermentation media are among the most important parameters for successful and stable operation. However, the difficulties in timely and precise dissolved CO and H2 measurements hinder the industrial-scale commercialization of this technique. The purpose of this article is to provide a comprehensive review of available dissolved CO and H2 measurement methods, focusing on their detection mechanisms, CO and H2 cross interference and operations in syngas fermentation process. This paper further discusses potential novel methods by providing a critical review of gas phase CO and H2 detection methods with regard to their capability to be modified for measuring dissolved CO and H2 in syngas fermentation conditions.

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Section: Dissolved Co Measurement Methodsmentioning

confidence: 99%

Section: Acoustic Wave Sensorsmentioning

confidence: 99%

Review of Dissolved CO and H2 Measurement Methods for Syngas Fermentation

Dang

Wang

Atiyeh

2021

Sensors

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“…19 Piezoelectric biosensors operate on the principle of coating the surface of the biosensor with a selectively binding biologically active substance. 18,21 The coated surface is placed in a solution containing analytes that bind to the binding substance. Thus, the mass of the crystal increases while the resonance frequency of oscillation decreases proportionally.…”

Section: ·1 Performance Of Biosensorsmentioning

confidence: 99%

“…Piezoelectric Quartz Crystal (PQC) biosensors, for example, have lower detection limits for the determination of cinchonine in Table 1 and have response times of 5 to 15 min with a detection limit of 0.7 -2 ppm for the determination of carbon monoxide. 18,21 Electrochemical biosensors are more amenable to miniaturization, have compatible instrumental sensitivity and can even operate in turbid media. 4,27 Electrochemical biosensors emerge as the most commonly used biosensors in monitoring and diagnosis tests in clinical analysis.…”

Section: ·1 Performance Of Biosensorsmentioning

confidence: 99%

“…As low cost, portable, and simple-to-operate analytical tools, biosensors have had certain advantages over the conventional analytical instruments such as gas chromatographs. [11][12][13][14][15][16][17][18] On the other hand, biosensors have had some limitations: electrochemically active interferences in the sample, weak long-term stability, and troublesome electrontransfer pathways. Nevertheless, the conventional instruments' possibility of real-time analysis is crucial for the measurements of human body substrates; the potential applications of biosensors and conventional instruments have continued to lie in the clinical diagnosis, bioprocess, food analysis, and environmental monitoring.…”

Section: Introductionmentioning

confidence: 99%

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Recent Developments, Characteristics, and Potential Applications of Electrochemical Biosensors

2004

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The objective of this study is to analyze the technical importance, performance, techniques, advantages, and disadvantages of the biosensors in general and of the electrochemical biosensors in particular. A product of reaction diffuses to the transducer in the first generation biosensors (based on Clark biosensors). The mediated biosensors or second generation biosensors use specific mediators between the reaction and the transducer to improve sensitivity. The second generation biosensors involve two steps: first, there is a redox reaction between enzyme and substrate that is reoxidized by the mediator, and eventually the mediator is oxidized by the electrode. No normal product or mediator diffusion is directly involved in the third generation biosensors, direct biosensors. Based on the type of transducer, current biosensors are divided into optical, mass, thermal, and electrochemical sensors. They are used in medical diagnostics, food quality controls, environmental monitoring, and other applications. These biosensors are also grouped under two broad categories of sensors: direct and indirect detection systems. Moreover, these systems could be further grouped into continuous or batch operation. Therefore, amperometric biosensors and their current applications are focused on more in detail since they are the most commonly used biosensors in monitoring and diagnosing tests in clinical analysis. Problems related to the commercialization of medical, environmental, and industrial biosensors as well as their performance characteristics, their competitiveness in comparison to the conventional analytical tools, and their costs determine the future development of these biosensors.

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Recent Progress in CO Detection Probes Based on Different Fluorophores

Fang,

Jiang,

et al. 2024

Analysis & Sensing

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Carbon monoxide (CO), a simple and well‐known toxic gas, is a naturally occurring gaseous transmitter that plays a crucial role in the regulation of physiological and pathological processes in living organisms. Usually, the development of various diseases can lead to the dysregulation of CO levels. Interestingly, CO has been shown to exert therapeutic effects in inflammation‐related disease models. Fluorescent probes for CO detection have become a vital research field in the past decades owing to their advantages of excellent selectivity, exceptional sensitivity, and real‐time in situ detection, which have been employed for the precise detection of CO in cells, tissues, and even living organisms. This paper reviews research advancements in CO fluorescent probes over the last decade, outlines the design concepts and detection mechanisms of relevant fluorescent probes, and provides design guidelines and future development prospects.

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Determination of carbon monoxide in ambient air using piezoelectric crystal sorption detection

Cited by 10 publications

References 30 publications

Review of Dissolved CO and H2 Measurement Methods for Syngas Fermentation

Review of Dissolved CO and H2 Measurement Methods for Syngas Fermentation

Recent Developments, Characteristics, and Potential Applications of Electrochemical Biosensors

Recent Progress in CO Detection Probes Based on Different Fluorophores

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