Determination of nitric acid and ammonium nitrate by means of a computer-controlled thermodenuder system

Dieter Klockow; Reinhard Niessner; Monika Malejczyk; Harro Kiendl; Bernd vom Berg; Menno P. Keuken; Anita Wayers-Ypelaan; Jakob Slanina

doi:10.1016/0004-6981(89)90314-4

Determination of nitric acid and ammonium nitrate by means of a computer-controlled thermodenuder system

Dieter Klockow, Reinhard Niessner, Monika Malejczyk, Harro Kiendl, Bernd vom Berg, Menno P. Keuken, Anita Wayers-Ypelaan, Jakob Slanina

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Two automatically operating thermodenuder systems for the measurement of HNO₃ and ammonium nitrate in air are described. One system (A) uses quartz annular denuders coated with MgSO₄ and a sample flow of 5 ℓ min^-1. A limit of detection of 0.1 μg m^-3 HNO₃ and NH₄NO₃ is obtained by using a sampling time of 30 min. A second system (B) is based on BaSO₄ and NaF coated glassy carbon denuders and a flow of 0.66 ℓ min^-1. System B has a limit of detection of 0.06 μg m^-3 HNO₃ and NH₄NO₃ using a sampling time of 24 h. In both systems air is sampled by denuder tubes at ambient temperature in order to collect HNO₃ in series with denuder tubes operated at 150°C to collect ammonium nitrate aerosol. After sampling the denuders are heated to 700°C and the liberated NO_x is detected by a standard NO_x monitor.

Original language	English
Pages (from-to)	1131-1138
Number of pages	8
Journal	Atmospheric Environment (1967)
Volume	23
Issue number	5
DOIs	https://doi.org/10.1016/0004-6981(89)90314-4
State	Published - 1989
Externally published	Yes

Keywords

Nitric acid
air concentration
ammonium nitrate
thermodenuder

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10.1016/0004-6981(89)90314-4

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@article{882ffe8146514dfc87f7af6c8c863da5,

title = "Determination of nitric acid and ammonium nitrate by means of a computer-controlled thermodenuder system",

abstract = "Two automatically operating thermodenuder systems for the measurement of HNO3 and ammonium nitrate in air are described. One system (A) uses quartz annular denuders coated with MgSO4 and a sample flow of 5 ℓ min-1. A limit of detection of 0.1 μg m-3 HNO3 and NH4NO3 is obtained by using a sampling time of 30 min. A second system (B) is based on BaSO4 and NaF coated glassy carbon denuders and a flow of 0.66 ℓ min-1. System B has a limit of detection of 0.06 μg m-3 HNO3 and NH4NO3 using a sampling time of 24 h. In both systems air is sampled by denuder tubes at ambient temperature in order to collect HNO3 in series with denuder tubes operated at 150°C to collect ammonium nitrate aerosol. After sampling the denuders are heated to 700°C and the liberated NOx is detected by a standard NOx monitor.",

keywords = "Nitric acid, air concentration, ammonium nitrate, thermodenuder",

author = "Dieter Klockow and Reinhard Niessner and Monika Malejczyk and Harro Kiendl and {vom Berg}, Bernd and Keuken, {Menno P.} and Anita Wayers-Ypelaan and Jakob Slanina",

note = "Funding Information: MENNOP . KEUKEN,* ANITA WAYERS-YPELAAaNn d JAKOBS LANINA Netherlands Energy Research Foundation (ECN), P.O. Box 1,175s ZG Petten, Tbe Net~rl~~",

year = "1989",

doi = "10.1016/0004-6981(89)90314-4",

language = "English",

volume = "23",

pages = "1131--1138",

journal = "Atmospheric Environment (1967)",

issn = "0004-6981",

publisher = "Pergamon Press Ltd.",

number = "5",

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TY - JOUR

T1 - Determination of nitric acid and ammonium nitrate by means of a computer-controlled thermodenuder system

AU - Klockow, Dieter

AU - Niessner, Reinhard

AU - Malejczyk, Monika

AU - Kiendl, Harro

AU - vom Berg, Bernd

AU - Keuken, Menno P.

AU - Wayers-Ypelaan, Anita

AU - Slanina, Jakob

N1 - Funding Information: MENNOP . KEUKEN,* ANITA WAYERS-YPELAAaNn d JAKOBS LANINA Netherlands Energy Research Foundation (ECN), P.O. Box 1,175s ZG Petten, Tbe Net~rl~~

PY - 1989

Y1 - 1989

N2 - Two automatically operating thermodenuder systems for the measurement of HNO3 and ammonium nitrate in air are described. One system (A) uses quartz annular denuders coated with MgSO4 and a sample flow of 5 ℓ min-1. A limit of detection of 0.1 μg m-3 HNO3 and NH4NO3 is obtained by using a sampling time of 30 min. A second system (B) is based on BaSO4 and NaF coated glassy carbon denuders and a flow of 0.66 ℓ min-1. System B has a limit of detection of 0.06 μg m-3 HNO3 and NH4NO3 using a sampling time of 24 h. In both systems air is sampled by denuder tubes at ambient temperature in order to collect HNO3 in series with denuder tubes operated at 150°C to collect ammonium nitrate aerosol. After sampling the denuders are heated to 700°C and the liberated NOx is detected by a standard NOx monitor.

AB - Two automatically operating thermodenuder systems for the measurement of HNO3 and ammonium nitrate in air are described. One system (A) uses quartz annular denuders coated with MgSO4 and a sample flow of 5 ℓ min-1. A limit of detection of 0.1 μg m-3 HNO3 and NH4NO3 is obtained by using a sampling time of 30 min. A second system (B) is based on BaSO4 and NaF coated glassy carbon denuders and a flow of 0.66 ℓ min-1. System B has a limit of detection of 0.06 μg m-3 HNO3 and NH4NO3 using a sampling time of 24 h. In both systems air is sampled by denuder tubes at ambient temperature in order to collect HNO3 in series with denuder tubes operated at 150°C to collect ammonium nitrate aerosol. After sampling the denuders are heated to 700°C and the liberated NOx is detected by a standard NOx monitor.

KW - Nitric acid

KW - air concentration

KW - ammonium nitrate

KW - thermodenuder

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U2 - 10.1016/0004-6981(89)90314-4

DO - 10.1016/0004-6981(89)90314-4

M3 - Article

AN - SCOPUS:0024410964

SN - 0004-6981

VL - 23

SP - 1131

EP - 1138

JO - Atmospheric Environment (1967)

JF - Atmospheric Environment (1967)

IS - 5

ER -

Determination of nitric acid and ammonium nitrate by means of a computer-controlled thermodenuder system

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Keywords

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