Sensitive luminescent paper-based sensor for the determination of gaseous hydrogen sulfide

Petruci, João Flávio da Silveira; Cardoso, Arnaldo Alves

doi:10.1039/c4ay02952f

Cited by 36 publications

(17 citation statements)

References 38 publications

(29 reference statements)

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“…Various sampling techniques have been used for the extraction and preconcentration of gases from air, such as adsorbent tubes, impregnated filters, bubblers and impingers (Kim and Allen, 1997;Kleindienst, et al, 1998;Fuertes, et al, 2003;Das, et al, 2004;Gallego, et al, 2010;Verriele, et al, 2012). Our experience using impregnated filters (Felix et al, 2011;da Silveira Petruci et al, 2015;Garcia et al, 2010) has shown that they can sample large quantities of air; they are easy to prepare and are easily transported between field sites and the laboratory, but may require procedures for extraction of the analyte and are incompatible with volatile impregnating solutions. The advantage of impingers is the wide variety of reagent solutions that can be used to collect different gases (Lodge, 1989;Destaillats et al, 2002;Harrison, 2012;Verriele, et al, 2012).…”

Section: Introductionmentioning

confidence: 98%

A Micro-impinger Sampling Device for Determination of Atmospheric Nitrogen Dioxide

Filho

Costa

Cardoso

2019

Aerosol Air Qual. Res.

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There is an increasing demand for the determination of gaseous pollutants present in both outdoor and indoor environments. It is the result of a growing awareness that good air quality is fundamental to the health of the population. Gas monitors capable of reliable measurements are a global necessity. In this work, we developed a low cost and portable microsampler for gaseous pollutants, using a µ-impinger bubbler containing 500 µL of absorbing reagent. The microsampler was evaluated in the detection of NO 2 using the Griess-Saltzman reagent (GS). The µ-impinger enabled the determination of NO 2 concentrations lower than 15 µg m-3 (~8 ppb) using a 50 mL min-1 sample flow rate during 30 min. This NO 2 concentration is 10 times lower than the EPA air quality standard. In the calibration procedure, standard atmospheres with NO 2 concentrations from 15 to 165 µg m-3 were used. The limit of detection was 14 µg m-3 considering 3.3 times the standard deviation of the blank signal. The relative error was 12.0%, and the coefficient of variation was 6.9%. The portable sampling procedure can be used in remote areas where there is no public electricity supply. The detection limit could be improved further by using longer sampling times and/or higher sampling flow rates. The method is selective and highly sensitive.

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Section: Introductionmentioning

confidence: 98%

A Micro-impinger Sampling Device for Determination of Atmospheric Nitrogen Dioxide

Filho

Costa

Cardoso

2019

Aerosol Air Qual. Res.

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“…In another study, a cellulose-based sensor impregnated with a palladium complex and ethylene glycol increased the response to H 2 S by four-fold compared to the sensor without the ethylene glycol [ 34 ]. The ethylene glycol acts as a humectant, facilitates solid/gas phase interaction by increasing the number of water molecules on the film surface, and enables a higher input of gas molecules on the cellulose layer [ 35 ]. Glycerol is an organic compound that consists of a three-carbon chain with -OH groups attached to each carbon and a similar structure to ethylene glycol.…”

Section: Resultsmentioning

confidence: 99%

Rice Husk-Derived Cellulose Nanofibers: A Potential Sensor for Water-Soluble Gases

Shahi

Lee

Min

et al. 2021

Sensors

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Cellulose and its derivatives have evoked much attention in sensor technology as host-matrices for conducting materials because of their versatility, renewability, and biocompatibility. However, only a few studies have dealt with the potential utilization of cellulose as a sensing material without a composite structure. In this study, cellulose nanofibers (CNF) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibers (TOCNF) extracted from rice husks by using ultrasonic-assisted methods are introduced as a potential gas sensing material with highly sensitive performance. To fabricate nanocellulose-based films, CNF, TOCNF, and TOCNF with glycerol (TOCNF/G) were dispersed in water and applied on polyimide substrate with digital electrodes to form self-standing thin films by a drop-casting method. A transparent coating layer on the surface of the plate after drying is used for the detection of water-soluble gases such as acetone, ammonia, methane, and hydrogen sulfide gases at room temperature at 52% relative humidity. The sensor prototypes exhibited high sensitivity, and the detection limit was between 1 ppm and 5 ppm, with less than 10 min response and recovery time. The results indicate that both the CNF- and the TOCNF-coated sensors show good sensitivity toward ammonia and acetone, compared to other gases. A TOCNF/G-coated sensor exhibited minimum time in regard to response/recovery time, compared to a CNF-coated sensor. In this study, nanocellulose-based sensors were successfully fabricated using a low-cost process and a bio-based platform. They showed good sensitivity for the detection of various gases under ambient conditions. Therefore, our study results should further propel in-depth research regarding various applications of cellulose-based sensors in the future.

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“…Previous studies [19][20][21] found that the addition of ETG to reagents resulted in improved gas sampling efficiency. In this study, it was demonstrated that the humidity of the paper affected the analytical signal response.…”

Section: Optimization and Calibration Of The Sensor For Determinationmentioning

confidence: 99%

“…Colorimetric assays performed on paper-based analytical devices have been used in a wide range of applications involving biological and industrial samples [16,17]. Microfluidic paper-based devices offer many advantages [18], such as (i) low cost and ready worldwide availability; (ii) requirement for small amounts of reagents (1-10 L), avoiding toxic waste generation; (iii) the possibility of POC applications, with high potential for miniaturization; and (iv) excellent performance as solid sorbents for gas collection [19][20][21]. However, their use for cyanide determination has not yet been fully explored.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric paper-based device for gaseous hydrogen cyanide quantification based on absorbance measurements

Petruci

Hauser

Cardoso

2018

Sensors and Actuators B: Chemical

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Hydrogen cyanide is a highly toxic compound employed for applications such as electroplating, production of organic solvents, fish stunning, and even as a chemical weapon. In this work, we describe a new microfluidic paper-based assay for selective cyanide determination, based on the reaction of the cyanide anion with palladium dimethylglyoximate (DMG) followed by colorimetric reaction of DMG with nickel. Quantification was performed by measuring the absorbance of light passing through the paper, employing an LED emitting at 525 nm and a log ratio amplifier circuit emulating Lambert-Beer's law. This offers an alternative to the smartphone-based methodologies for signal treatment usually employed in colorimetric PAD-based methods The technique enabled linear calibration within the range 100-500 ppb of HCN, as well as a detection limit of 10 ppb for HCN in gaseous samples. The sampling time used for this concentration range was 5 min. The method was also tested for the quantification of cyanide in aqueous samples by adding H 3 PO 4 to the sample, followed by exposure of the paper sensor to the gaseous HCN generated. A detection limit of 1 M was achieved, which makes the method also suitable for detection of cyanide in liquid samples.

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Sensitive luminescent paper-based sensor for the determination of gaseous hydrogen sulfide

Abstract: Sampling and measurements without extraction steps.

Cited by 36 publications

References 38 publications

A Micro-impinger Sampling Device for Determination of Atmospheric Nitrogen Dioxide

A Micro-impinger Sampling Device for Determination of Atmospheric Nitrogen Dioxide

Rice Husk-Derived Cellulose Nanofibers: A Potential Sensor for Water-Soluble Gases

Colorimetric paper-based device for gaseous hydrogen cyanide quantification based on absorbance measurements

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