Detection of Trimethylamine Based on a Manganese Tetraphenylporphyrin Optical Waveguide Sensing Element

Wang, Jiaming; Nizamidin, Patima; Zhang, Yuan; Kari, Nuerguli; Yimit, Abliz

doi:10.2116/analsci.17p564

Cited by 10 publications

(6 citation statements)

References 48 publications

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“…In Fig. 6, ΔI denotes the change in the output light intensity and is calculated using the following formula [36]: where I gas is the output light intensity of the gas and I air is the output light intensity of the surrounding air. From Fig.…”

Section: Gas Sensing Performancementioning

confidence: 99%

Zinc Phthalocyanine Thin Film-Based Optical Waveguide H2S Gas Sensor

Wumaier

Mamtmin

et al. 2021

Photonic Sens

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The detection of hydrogen sulfide (H2S) is essential because of its toxicity and abundance in the environment. Hence, there is an urgent requisite to develop a highly sensitive and economical H2S detection system. Herein, a zinc phthalocyanine (ZnPc) thin film-based K+-exchanged optical waveguide (OWG) gas sensor was developed for H2S detection by using spin coating. The sensor showed excellent H2S sensing performance at room temperature with a wide linear range (0.1 ppm–500 ppm), reproducibility, stability, and a low detection limit of 0.1 ppm. The developed sensor showed a significant prospect in the development of cost-effective and highly sensitive H2S gas sensors.

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Section: Gas Sensing Performancementioning

confidence: 99%

Zinc Phthalocyanine Thin Film-Based Optical Waveguide H2S Gas Sensor

Wumaier

Mamtmin

et al. 2021

Photonic Sens

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“…10: the average output light intensity of the three parallel experiments is represented on the Y-axis, while the concentration of analytes is represented on the X-axis, and a Y-axis error bar graph is plotted. 39 It can be seen that there is a good linear relationship between the intensity of the output light and the concentration of SO2 and H2S gas in the three parallel experiments (n = 3); the linear equation is Y = (836 ± 14.07) + (-129.5 ± 2.38)X, R 2 = 0.9983 (SO2, 1000 ppm -10 ppb, n = 3), and, Y = (575.69 ± 20.81) + (63.18 ± 3.21)X, R 2 = 0.9897 (H2S, 100 ppm -10 ppb, n = 3), which suggests the accuracy of the sensor element toward the SO2 and H2S gas.…”

Section: Response Mechanism and Selective Response Of Sensor Element mentioning

confidence: 99%

Optical-Electricity Gas-Sensing Property Detection of SDBS-WO3 Film at Room Temperature

et al. 2018

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In this work, sodium dodecyl benzene sulfonate (SDBS) was used as a dispersing agent; a WO3 nanoparticle suspension was used as a sensing material. The SDBS-WO3 thin film/Sn-doped glass optical waveguide sensor element was prepared by spin coating. The sensing material was characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and field-emission scanning electron microscopy (FESEM). The gas-sensing characteristics of the fabricated sensors were studied at room temperature for various gases. The experimental results indicate that the sensor exhibited a high selective response toward SO2 and H2S and a low detection limit of 10 ppb to SO2 and H2S. The response/recovery times for SO2 and H2S were 2/23 and 2/18 s. However, during an electrochemical gas-sensing performance test of the SDBS-WO3 film at room temperature, the results indicated that the trend of the variation in resistance was consistent with the variation in the output light.

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“…The assessment of fish freshness using a gas sensor based on a metal oxide semiconductor material that detects TMA represents a non-destructive and rapid detection method, and has been studied widely. This method has the advantages of high sensitivity, low cost, convenient and rapid detection process, and has played an important role in rapid and non-destructive detection of fish freshness ( Chen et al, 2014 ; Chang et al, 2017 ; Wang et al, 2018 ; Zhang et al, 2019 ). Nano-α-Fe 2 O 3 is a typical n-type semiconducting metal oxide with a forbidden band width of 2.2 eV.…”

Section: Introductionmentioning

confidence: 99%

A Gas Sensor With Fe2O3 Nanospheres Based on Trimethylamine Detection for the Rapid Assessment of Spoilage Degree in Fish

Liu

et al. 2020

Front. Bioeng. Biotechnol.

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A spherical iron oxide precursor was prepared using a solvothermal method, and then treated thermally at 400 • C to obtain α-Fe 2 O 3 nanoparticles. The structures and morphology of the as-obtained products were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results showed that the diameter of the α-Fe 2 O 3 nanoparticles was approximately 500 nm. In addition, we formed the α-Fe 2 O 3 nanoparticles into a thick film as a gas sensor and performed a gas sensing test. When the working temperature was set at 250 • C, the α-Fe 2 O 3 nanoparticle displayed very good selectivity and high sensitivity for trimethylamine (TMA). The minimum detection was as low as 1 ppm, and the response value for 100 ppm TMA gas was 27.8. Taken together, our findings illustrated that the α-Fe 2 O 3 nanoparticles could be used as a gas-sensitive material to test the freshness of fish.

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Detection of Trimethylamine Based on a Manganese Tetraphenylporphyrin Optical Waveguide Sensing Element

Cited by 10 publications

References 48 publications

Zinc Phthalocyanine Thin Film-Based Optical Waveguide H2S Gas Sensor

Zinc Phthalocyanine Thin Film-Based Optical Waveguide H2S Gas Sensor

Optical-Electricity Gas-Sensing Property Detection of SDBS-WO3 Film at Room Temperature

A Gas Sensor With Fe2O3 Nanospheres Based on Trimethylamine Detection for the Rapid Assessment of Spoilage Degree in Fish

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