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Characterization of Fourier Transform Infrared, Cavity Ring-Down Spectroscopy, and Optical Feedback Cavity-Enhanced Absorption Spectroscopy Instruments for the Analysis of Ammonia in Biogas and Biomethane
NPL National Physical Laboratory, UK.
NPL National Physical Laboratory, UK.
NPL National Physical Laboratory, UK.
NPL National Physical Laboratory, UK.
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2022 (Engelska)Ingår i: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 94, nr 44, s. 15207-15214Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Novel traceable analytical methods and reference gas standards were developed for the detection of trace-level ammonia in biogas and biomethane. This work focused on an ammonia amount fraction at an upper limit level of 10 mg m-3(corresponding to approximately 14 μmol mol-1) specified in EN 16723-1:2016. The application of spectroscopic analytical methods, such as Fourier transform infrared spectroscopy, cavity ring-down spectroscopy, and optical feedback cavity-enhanced absorption spectroscopy, was investigated. These techniques all exhibited the necessary ammonia sensitivity at the required 14 μmol mol-1amount fraction. A 29-month stability study of reference gas mixtures of 10 μmol mol-1ammonia in methane and synthetic biogas is also reported. 

Ort, förlag, år, upplaga, sidor
American Chemical Society , 2022. Vol. 94, nr 44, s. 15207-15214
Nyckelord [en]
Absorption spectroscopy, Band structure, Biogas, Fourier transform infrared spectroscopy, Light measurement, Optical feedback, Analytical method, Biomethane, Cavity enhanced absorption spectroscopy, Cavity ring down spectroscopies, Feedback cavity, Fourier transform infrared, Gas standards, Limit levels, Trace level, Upper limits, Ammonia
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
URN: urn:nbn:se:ri:diva-61226DOI: 10.1021/acs.analchem.2c01951Scopus ID: 2-s2.0-85141498580OAI: oai:DiVA.org:ri-61226DiVA, id: diva2:1715535
Anmärkning

 Funding details: Horizon 2020 Framework Programme, H2020; Funding text 1: This project (ENG54) has received funding from the EMRP program co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation program.

Tillgänglig från: 2022-12-02 Skapad: 2022-12-02 Senast uppdaterad: 2023-05-23Bibliografiskt granskad

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Arrhenius, Karine

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Analytical Chemistry
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