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Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2

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Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2. / Duan, Jun; Qin, Min; Ouyang, Bin et al.
In: Atmospheric Measurement Techniques, Vol. 11, No. 7, 30.07.2018, p. 4531-4543.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Duan, J, Qin, M, Ouyang, B, Fang, W, Li, X, Lu, K, Tang, K, Liang, S, Meng, F, Hu, Z, Xie, P, Liu, W & Häsler, R 2018, 'Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2', Atmospheric Measurement Techniques, vol. 11, no. 7, pp. 4531-4543. https://doi.org/10.5194/amt-11-4531-2018

APA

Duan, J., Qin, M., Ouyang, B., Fang, W., Li, X., Lu, K., Tang, K., Liang, S., Meng, F., Hu, Z., Xie, P., Liu, W., & Häsler, R. (2018). Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2. Atmospheric Measurement Techniques, 11(7), 4531-4543. https://doi.org/10.5194/amt-11-4531-2018

Vancouver

Duan J, Qin M, Ouyang B, Fang W, Li X, Lu K et al. Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2. Atmospheric Measurement Techniques. 2018 Jul 30;11(7):4531-4543. doi: 10.5194/amt-11-4531-2018

Author

Duan, Jun ; Qin, Min ; Ouyang, Bin et al. / Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2. In: Atmospheric Measurement Techniques. 2018 ; Vol. 11, No. 7. pp. 4531-4543.

Bibtex

@article{f5600ffda972403caf5378831b250f77,
title = "Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2",
abstract = "Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere. However, its source, especially that during daytime hours remains unclear. We present an instrument for simultaneous unambiguous measurements of HONO and NO2 with high time resolution based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS). To achieve robust performance and system stability under different environment conditions, the current IBBCEAS instrument has been developed with significant improvements in terms of efficient sampling as well as resistance against vibration and temperature change, and the IBBCEAS instrument also has low power consumption and a compact design that can be easily deployed on different platforms powered by a high-capacity lithium ion battery. The effective cavity length of the IBBCEAS was determined using the absorption of O2-O2 to account for the shortening effect caused by the mirror purge flows. The wall loss for HONO was estimated to be 2.0% via a HONO standard generator. Measurement precisions (2 σ) for HONO and NO2 are about 180 and 340ppt in 30s, respectively. A field inter-comparison was carried out at a rural suburban site in Wangdu, Hebei Province, China. The concentrations of HONO and NO2 measured by IBBCEAS were compared with a long optical path absorption photometer (LOPAP) and a NOx analyzer (Thermo Fisher Electron Model 42i), and the results showed very good agreement, with correlation coefficients (R2) of HONO and NO2 being ∼ 0.89 and ∼ 0.95, respectively; in addition, vehicle deployments were also tested to enable mobile measurements of HONO and NO2, demonstrating the promising potential of using IBBCEAS for in situ, sensitive, accurate and fast simultaneous measurements of HONO and NO2 in the future.",
author = "Jun Duan and Min Qin and Bin Ouyang and Wu Fang and Xin Li and Keding Lu and Ke Tang and Shuaixi Liang and Fanhao Meng and Zhaokun Hu and Pinhua Xie and Wenqing Liu and Rolf H{\"a}sler",
year = "2018",
month = jul,
day = "30",
doi = "10.5194/amt-11-4531-2018",
language = "English",
volume = "11",
pages = "4531--4543",
journal = "Atmospheric Measurement Techniques",
issn = "1867-1381",
publisher = "Copernicus GmbH (Copernicus Publications) on behalf of the European Geosciences Union (EGU)",
number = "7",

}

RIS

TY - JOUR

T1 - Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2

AU - Duan, Jun

AU - Qin, Min

AU - Ouyang, Bin

AU - Fang, Wu

AU - Li, Xin

AU - Lu, Keding

AU - Tang, Ke

AU - Liang, Shuaixi

AU - Meng, Fanhao

AU - Hu, Zhaokun

AU - Xie, Pinhua

AU - Liu, Wenqing

AU - Häsler, Rolf

PY - 2018/7/30

Y1 - 2018/7/30

N2 - Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere. However, its source, especially that during daytime hours remains unclear. We present an instrument for simultaneous unambiguous measurements of HONO and NO2 with high time resolution based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS). To achieve robust performance and system stability under different environment conditions, the current IBBCEAS instrument has been developed with significant improvements in terms of efficient sampling as well as resistance against vibration and temperature change, and the IBBCEAS instrument also has low power consumption and a compact design that can be easily deployed on different platforms powered by a high-capacity lithium ion battery. The effective cavity length of the IBBCEAS was determined using the absorption of O2-O2 to account for the shortening effect caused by the mirror purge flows. The wall loss for HONO was estimated to be 2.0% via a HONO standard generator. Measurement precisions (2 σ) for HONO and NO2 are about 180 and 340ppt in 30s, respectively. A field inter-comparison was carried out at a rural suburban site in Wangdu, Hebei Province, China. The concentrations of HONO and NO2 measured by IBBCEAS were compared with a long optical path absorption photometer (LOPAP) and a NOx analyzer (Thermo Fisher Electron Model 42i), and the results showed very good agreement, with correlation coefficients (R2) of HONO and NO2 being ∼ 0.89 and ∼ 0.95, respectively; in addition, vehicle deployments were also tested to enable mobile measurements of HONO and NO2, demonstrating the promising potential of using IBBCEAS for in situ, sensitive, accurate and fast simultaneous measurements of HONO and NO2 in the future.

AB - Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere. However, its source, especially that during daytime hours remains unclear. We present an instrument for simultaneous unambiguous measurements of HONO and NO2 with high time resolution based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS). To achieve robust performance and system stability under different environment conditions, the current IBBCEAS instrument has been developed with significant improvements in terms of efficient sampling as well as resistance against vibration and temperature change, and the IBBCEAS instrument also has low power consumption and a compact design that can be easily deployed on different platforms powered by a high-capacity lithium ion battery. The effective cavity length of the IBBCEAS was determined using the absorption of O2-O2 to account for the shortening effect caused by the mirror purge flows. The wall loss for HONO was estimated to be 2.0% via a HONO standard generator. Measurement precisions (2 σ) for HONO and NO2 are about 180 and 340ppt in 30s, respectively. A field inter-comparison was carried out at a rural suburban site in Wangdu, Hebei Province, China. The concentrations of HONO and NO2 measured by IBBCEAS were compared with a long optical path absorption photometer (LOPAP) and a NOx analyzer (Thermo Fisher Electron Model 42i), and the results showed very good agreement, with correlation coefficients (R2) of HONO and NO2 being ∼ 0.89 and ∼ 0.95, respectively; in addition, vehicle deployments were also tested to enable mobile measurements of HONO and NO2, demonstrating the promising potential of using IBBCEAS for in situ, sensitive, accurate and fast simultaneous measurements of HONO and NO2 in the future.

U2 - 10.5194/amt-11-4531-2018

DO - 10.5194/amt-11-4531-2018

M3 - Journal article

AN - SCOPUS:85050864261

VL - 11

SP - 4531

EP - 4543

JO - Atmospheric Measurement Techniques

JF - Atmospheric Measurement Techniques

SN - 1867-1381

IS - 7

ER -