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Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species

Tutkimustuotosvertaisarvioitu

Standard

Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species. / Viljanen, Jan; Kalmankoski, Kim; Contreras, Victor; Sarin, Jaakko K.; Sorvajärvi, Tapio; Kinnunen, Hanna; Enestam, Sonja; Toivonen, Juha.

julkaisussa: Sensors (Basel, Switzerland), Vuosikerta 20, Nro 2, 533, 18.01.2020.

Tutkimustuotosvertaisarvioitu

Harvard

Viljanen, J, Kalmankoski, K, Contreras, V, Sarin, JK, Sorvajärvi, T, Kinnunen, H, Enestam, S & Toivonen, J 2020, 'Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species', Sensors (Basel, Switzerland), Vuosikerta. 20, Nro 2, 533. https://doi.org/10.3390/s20020533

APA

Viljanen, J., Kalmankoski, K., Contreras, V., Sarin, J. K., Sorvajärvi, T., Kinnunen, H., ... Toivonen, J. (2020). Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species. Sensors (Basel, Switzerland), 20(2), [533]. https://doi.org/10.3390/s20020533

Vancouver

Viljanen J, Kalmankoski K, Contreras V, Sarin JK, Sorvajärvi T, Kinnunen H et al. Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species. Sensors (Basel, Switzerland). 2020 tammi 18;20(2). 533. https://doi.org/10.3390/s20020533

Author

Viljanen, Jan ; Kalmankoski, Kim ; Contreras, Victor ; Sarin, Jaakko K. ; Sorvajärvi, Tapio ; Kinnunen, Hanna ; Enestam, Sonja ; Toivonen, Juha. / Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species. Julkaisussa: Sensors (Basel, Switzerland). 2020 ; Vuosikerta 20, Nro 2.

Bibtex - Lataa

@article{89c605f94bde42cea79ad445b33786b0,
title = "Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species",
abstract = "Industrial chemical processes are struggling with adverse effects, such as corrosion and deposition, caused by gaseous alkali and heavy metal species. Mitigation of these problems requires novel monitoring concepts that provide information on gas-phase chemistry. However, selective optical online monitoring of the most problematic diatomic and triatomic species is challenging due to overlapping spectral features. In this work, a selective, all-optical, in situ gas-phase monitoring technique for triatomic molecules containing metallic atoms was developed and demonstrated with detection of PbCl2. Sequential collinear photofragmentation and atomic absorption spectroscopy (CPFAAS) enables determination of the triatomic PbCl2 concentration through detection of released Pb atoms after two consecutive photofragmentation processes. Absorption cross-sections of PbCl2, PbCl, and Pb were determined experimentally in a laboratory-scale reactor to enable calibration-free quantitative determination of the precursor molecule concentration in an arbitrary environment. Limit of detection for PbCl2 in the laboratory reactor was determined to be 0.25 ppm. Furthermore, the method was introduced for in situ monitoring of PbCl2 concentration in a 120 MWth power plant using demolition wood as its main fuel. In addition to industrial applications, the method can provide information on chemical reaction kinetics of the intermediate species that can be utilized in reaction simulations.",
keywords = "absorption, combustion, kinetics, lead, photofragmentation",
author = "Jan Viljanen and Kim Kalmankoski and Victor Contreras and Sarin, {Jaakko K.} and Tapio Sorvaj{\"a}rvi and Hanna Kinnunen and Sonja Enestam and Juha Toivonen",
note = "INT=phys,{"}Kalmankoski, Kim{"} INT=phys,{"}Sarin, Jaakko K.{"}",
year = "2020",
month = "1",
day = "18",
doi = "10.3390/s20020533",
language = "English",
volume = "20",
journal = "Sensors",
issn = "1424-8220",
publisher = "MDPI",
number = "2",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Species

AU - Viljanen, Jan

AU - Kalmankoski, Kim

AU - Contreras, Victor

AU - Sarin, Jaakko K.

AU - Sorvajärvi, Tapio

AU - Kinnunen, Hanna

AU - Enestam, Sonja

AU - Toivonen, Juha

N1 - INT=phys,"Kalmankoski, Kim" INT=phys,"Sarin, Jaakko K."

PY - 2020/1/18

Y1 - 2020/1/18

N2 - Industrial chemical processes are struggling with adverse effects, such as corrosion and deposition, caused by gaseous alkali and heavy metal species. Mitigation of these problems requires novel monitoring concepts that provide information on gas-phase chemistry. However, selective optical online monitoring of the most problematic diatomic and triatomic species is challenging due to overlapping spectral features. In this work, a selective, all-optical, in situ gas-phase monitoring technique for triatomic molecules containing metallic atoms was developed and demonstrated with detection of PbCl2. Sequential collinear photofragmentation and atomic absorption spectroscopy (CPFAAS) enables determination of the triatomic PbCl2 concentration through detection of released Pb atoms after two consecutive photofragmentation processes. Absorption cross-sections of PbCl2, PbCl, and Pb were determined experimentally in a laboratory-scale reactor to enable calibration-free quantitative determination of the precursor molecule concentration in an arbitrary environment. Limit of detection for PbCl2 in the laboratory reactor was determined to be 0.25 ppm. Furthermore, the method was introduced for in situ monitoring of PbCl2 concentration in a 120 MWth power plant using demolition wood as its main fuel. In addition to industrial applications, the method can provide information on chemical reaction kinetics of the intermediate species that can be utilized in reaction simulations.

AB - Industrial chemical processes are struggling with adverse effects, such as corrosion and deposition, caused by gaseous alkali and heavy metal species. Mitigation of these problems requires novel monitoring concepts that provide information on gas-phase chemistry. However, selective optical online monitoring of the most problematic diatomic and triatomic species is challenging due to overlapping spectral features. In this work, a selective, all-optical, in situ gas-phase monitoring technique for triatomic molecules containing metallic atoms was developed and demonstrated with detection of PbCl2. Sequential collinear photofragmentation and atomic absorption spectroscopy (CPFAAS) enables determination of the triatomic PbCl2 concentration through detection of released Pb atoms after two consecutive photofragmentation processes. Absorption cross-sections of PbCl2, PbCl, and Pb were determined experimentally in a laboratory-scale reactor to enable calibration-free quantitative determination of the precursor molecule concentration in an arbitrary environment. Limit of detection for PbCl2 in the laboratory reactor was determined to be 0.25 ppm. Furthermore, the method was introduced for in situ monitoring of PbCl2 concentration in a 120 MWth power plant using demolition wood as its main fuel. In addition to industrial applications, the method can provide information on chemical reaction kinetics of the intermediate species that can be utilized in reaction simulations.

KW - absorption

KW - combustion

KW - kinetics

KW - lead

KW - photofragmentation

U2 - 10.3390/s20020533

DO - 10.3390/s20020533

M3 - Article

VL - 20

JO - Sensors

JF - Sensors

SN - 1424-8220

IS - 2

M1 - 533

ER -