Sub‐ppb nitrogen dioxide detection based on resonant photoacoustic spectroscopy
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32836
Abstract: A photoacoustic spectroscopy sensor for nitrogen dioxide (NO2) detection was presented based on a high‐power broadband blue diode laser emitting at 446 nm. An optical chopper was replaced by a transistor transistor logic modulation signal… read more here.
Keywords: nitrogen dioxide; photoacoustic spectroscopy; spectroscopy; detection ... See more keywords
Advances in fiber‐based quartz enhanced photoacoustic spectroscopy for trace gas sensing
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32841
Abstract: Fiber‐based quartz enhanced photoacoustic spectroscopy (QEPAS) is a method for trace gas sensing with excellent properties such as high sensitivity and strong applicability. It has received extensive attention and become particularly attractive in recent years.… read more here.
Keywords: photoacoustic spectroscopy; fiber based; spectroscopy; enhanced photoacoustic ... See more keywords
Photoacoustic Spectroscopy in the Characterization of Bread with Turmeric Addition
Sign Up to like & getrecommendations! Published in 2020 at "Food and Bioprocess Technology"
DOI: 10.1007/s11947-020-02546-2
Abstract: In this research, we will apply photoacoustic spectroscopy and evaluate bread added with turmeric (Curcuma longa Linnaeus) at different concentrations in relation to wheat flour weight (0, 1.25, 2.5, 5, and 10%). The amplitude of… read more here.
Keywords: bread turmeric; addition; spectroscopy; bread ... See more keywords
Photoacoustic spectroscopy as a potential method for studying fouling of flat-sheet ultrafiltration membranes
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2019.04.048
Abstract: Abstract In this study, the application of photoacoustic spectroscopy (FT-IR/PAS) is proposed to investigate membrane fouling phenomena. Ultrafiltration membranes made of polyether sulfone (PES) in modules operated at different flow regimes (dead-end and cross-flow) were… read more here.
Keywords: photoacoustic spectroscopy; spectroscopy; membrane; ultrafiltration membranes ... See more keywords
A method for bivalve shells characterization by FT-IR photoacoustic spectroscopy as a tool for environmental studies
Sign Up to like & getrecommendations! Published in 2022 at "MethodsX"
DOI: 10.1016/j.mex.2022.101672
Abstract: Fourier Transform Infrared Spectroscopy has been employed to investigate the composition of the shells of two marine bivalves Mytilus galloprovincialis and Corbula gibba from four samples collected from the Mar Piccolo of Taranto (Ionian Sea,… read more here.
Keywords: photoacoustic spectroscopy; methodology; spectroscopy; bivalve shells ... See more keywords
Evaluation of photosensitizer penetration into sound and decayed dentin: A photoacoustic spectroscopy study.
Sign Up to like & getrecommendations! Published in 2018 at "Photodiagnosis and photodynamic therapy"
DOI: 10.1016/j.pdpdt.2017.11.008
Abstract: BACKGROUND Photodynamic therapy (PDT) may have topical indications. In those cases it is important for a topical photosensitizer to penetrate into the tissue to which it has been applied. This study aimed to compare the… read more here.
Keywords: decayed dentin; dentin; photosensitizer; penetration ... See more keywords
Quartz-Enhanced Photoacoustic Spectroscopy-Conductance Spectroscopy for Gas Mixture Analysis.
Sign Up to like & getrecommendations! Published in 2023 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.3c01081
Abstract: A novel spectroscopic method, named quartz-enhanced photoacoustic spectroscopy-conductance spectroscopy (QEPAS-CS), was first developed for gas mixture analysis. In QEPAS-CS, the advantage of photoacoustic detection and conductance analysis was realized by a quartz tuning fork (QTF).… read more here.
Keywords: conductance; spectroscopy; analysis; gas mixture ... See more keywords
Optical Properties of In2 xGa2-2 xO3 Nanowires Revealed by Photoacoustic Spectroscopy.
Sign Up to like & getrecommendations! Published in 2019 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.9b00756
Abstract: Group III oxides, such as In2O3 and Ga2O3, have proved to be good candidates as active materials for novel electronic devices, including high-mobility transistors, gas sensors, and UV photodetectors. The ability to tune optical and… read more here.
Keywords: optical properties; in2 xga2; spectroscopy; xga2 xo3 ... See more keywords
Simultaneous Detection of C₂H₂ and CO Based on Cantilever-Enhanced Photoacoustic Spectroscopy
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2021.3080377
Abstract: Gas detection based on photoacoustic (PA) spectroscopy has attracted extensive attention due to high sensitivity and portability. Herein, to achieve the simultaneously detection of the transformer oil carbide gases, C2H2 and CO, a gas-detection system… read more here.
Keywords: gas; spectroscopy; detection based; detection ... See more keywords
Photoacoustic spectroscopy accurately measures atmospheric 12CO2 and 13CO2 concentrations and optical properties of carbonaceous aerosols
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4988033
Abstract: Understanding of today's climate and predictions of future climate require accurate input data to model the energy balance between the sun's irradiance and Earth’s atmosphere, oceans, land, and surface ice. An important driver of climate… read more here.
Keywords: accurately measures; optical properties; spectroscopy; carbonaceous aerosols ... See more keywords
Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.450407
Abstract: A real-time trace gas detector for benzene is demonstrated. The measurement system takes advantage of modest enrichment through short adsorption periods to reach a ppt-level detection limit with a sampling cycle of 90 s, which… read more here.
Keywords: benzene; ppt level; photoacoustic spectroscopy; spectroscopy ... See more keywords