Measurement of gas phase hydrogen peroxide in air by tunable diode laser absorption spectroscopy

Šlemr, F.; Harris, G. W.; Hastie, D. R.; Mackay, G. I.; Schiff, H. I.

doi:10.1029/jd091id05p05371

Cited by 100 publications

(37 citation statements)

References 16 publications

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“…The accuracy of the measurements above the detection limit was estimated to be ±20% arising largely from the determination of the permeation rates. Details of these procedures for formaldehyde and hydrogen peroxide are in Harris et al (1989) and Slemr et al (1986), respectively. PAN was measured using a gas chromatograph (GC)with electron capture detection.…”

Section: Methodsmentioning

confidence: 99%

The influence of the nocturnal boundary layer on secondary trace species in the atmosphere at Dorset, Ontario

Hastie

Shepson

Sharma

et al. 1993

Atmospheric Environment. Part A. General Topics

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Abstract-The impact ofthe nocturnal boundary layer (NBL) on the concentrations of03' H 2 0 2 , PAN and CH20 has been studied for two 4-day periods, one in the summer of 1989 and the other in the spring of 1990. Where the presence of the nocturnal layer is clear, 03' PAN and CH 2 0 concentrations decrease rapidly and these species appear to be deposited to the surface. Break-up of the inversion in the morning returns concentrations to levels typical ofthe previous day. H 2 0 2 is removed much faster than the other species and it is replenished much more slowly. This appears to be due to the H 2 0 2 dissolving in water droplets resulting from the rapid cooling of the air. There is evidence for a morning maximum in PAN, likely due to the combination of high concentrations being brought downwards during the break-up of the NBL followed by thermal decomposition. Key word index:Ozone, hydrogen peroxide, formaldehyde, PAN, nocturnal boundary layer, deposition, nighttime chemistry. INTRODUCfIONField measurement studies are an important part of the atmospheric chemists' arsenal. They are performed to give data to assist in understanding specific questions in atmospheric chemistry, and for the development and evaluation of photochemical models.For convenience, most field measurements are made at the surface. However, the presence of the ground, and other local effects, can often significantly impact the observations, masking the larger scale chemical features one wishes to study. One such factor is the occurrence of a strong nocturnal boundary layer (NBL). By isolating the air being sampled from the bulk of the air aloft, for several hours each night, it often plays the principal role in determining the diurnal variation of the surface concentrations of a number of the more reactive species.In this paper we look in detail at the measurements of a number of secondary, reactive, trace gases, made at a rural site in Ontario, to see the effect of the NBL on their concentrations. The gases under study were 0 3 , HzO z , CHzO and PAN. These species have no direct emission sources, with the exception of a small amount of CHzO from combustion, and originate from atmospheric oxidation chemistry. By concentrating on these species, it is possible to focus on the chemistry that is occurring, rather than on the emission or transport processes. Furthermore, using the NBL to isolate a relatively small section of the atmosphere accentuates the observable consequences of any of these processes. Although the concentrations of this suite of species would be expected to be related, they have unique atmospheric lifetimes and decay mechanisms, and therefore they constitute a diverse set of molecules with which to probe our understanding of the system.The behaviour of ozone under the NBL is well documented (e.g. Cox et al., 1975;Harrison et al., 1978;Oltmans, 1981; Kelly et al., 1984; Broder and Gygax, 1985;Broder et al., 1981; Fehsenfeld et al., 1983;Lifshitz et al., 1988;Shepson et al., 1992b). However, the previously reported diurnal behavi...

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Section: Methodsmentioning

confidence: 99%

The influence of the nocturnal boundary layer on secondary trace species in the atmosphere at Dorset, Ontario

Hastie

Shepson

Sharma

et al. 1993

Atmospheric Environment. Part A. General Topics

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“…A complete comparison for the H20, data will be made at a later date (Lawson et al, 1988). In June of 1986 an intercomparison study was conducted between the tunable diode laser technique (Slemr et al, 1986), enzyme analytical technique with diffusion scrubbing collection, (Dasgupta et al, 1987) and the enzyme analytical technique with continuous collection (Lazrus et al, 1986) showing agreement within 20% over a wide range of standard samples (Kleindienst et al, 1988). The larger differences observed in this study will need additional detailed field studies to reconcile the differences.…”

Section: Ho Results and Discussionmentioning

confidence: 99%

“…The accuracy of these measurements are in question due to the formation of H202 from the reaction of ozone (0,) with the collecting solution for H202 and due to the possible aqueous reaction of H202 with other gases (Zika and Salzman, 1982;Heikes et al, 1984). Since that time a number of techniques have been developed for the measurement of H20, in ambient air (Lazrus et al, 1986;Tanner et al, 1986;Sakugawa and Kaplan, 1987;Dasgupta et al, 1989;Slemr et al, 1986;Jacob et al, 1986). The first four techniques utilize the enzyme catalyzed dimerization of p-hydroxyphenylacetic acid (POPHA) as the *Present affiliation: Center for Atmospheric Studies, Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882-1197. analytical procedure with different methods for the collection of the H202.…”

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confidence: 99%

Measurements of Hydrogen Peroxide and Formaldehyde in Glendora, California

Kok¹,

Walega²,

Heikes³

et al. 1990

Aerosol Science and Technology

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“…Sampling artifacts and interference from other atmospheric species can be introduced in these methods, preventing an accurate determination of H 2 O 2 in the atmosphere. Direct H 2 O 2 measurements in the gas-phase based on optical approaches, such as tunable diode laser absorption spectroscopy (TDLAS), provide practical advantages over other methods due to their high sensitivity, selectivity, fast response and long-term operation [5][6][7][8] . …”

Section: Introductionmentioning

confidence: 99%

Quantum cascade laser-based multipass absorption system for hydrogen peroxide detection

et al. 2015

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Hydrogen peroxide (H 2 O 2 ) is a relevant molecular trace gas species, that is related to the oxidative capacity of the atmosphere, the production of radical species such as OH, the generation of sulfate aerosol via oxidation of S(IV) to S(VI), and the formation of acid rain. The detection of atmospheric H 2 O 2 involves specific challenges due to its high reactivity and low concentration (ppbv to sub-ppbv level). Traditional methods for measuring atmospheric H 2 O 2 concentration are often based on wet-chemistry methods that require a transfer from the gas-to liquid-phase for a subsequent determination by techniques such as fluorescence spectroscopy, which can lead to problems such as sampling artifacts and interference by other atmospheric constituents. A quartz-enhanced photoacoustic spectroscopy-based system for the measurement of atmospheric H 2 O 2 with a detection limit of 75 ppb for 1-s integration time was previously reported. In this paper, an updated H 2 O 2 detection system based on long-optical-path-length absorption spectroscopy by using a distributed feedback quantum cascade laser (DFB-QCL) will be described. A 7.73-µm CW-DFB-QCL and a thermoelectrically cooled infrared detector, optimized for a wavelength of 8 µm, are employed for the H 2 O 2 sensor system. A commercial astigmatic Herriott multi-pass cell with an effective optical path-length of 76 m is utilized for the reported QCL multipass absorption system. Wavelength modulation spectroscopy (WMS) with second harmonic detection is used for enhancing the signal-to-noise-ratio. A minimum detection limit of 13.4 ppb is achieved with a 2 s sampling time. Based on an Allan-Werle deviation analysis the minimum detection limit can be improved to 1.5 ppb when using an averaging time of 300 s.

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Measurement of gas phase hydrogen peroxide in air by tunable diode laser absorption spectroscopy

Cited by 100 publications

References 16 publications

The influence of the nocturnal boundary layer on secondary trace species in the atmosphere at Dorset, Ontario

The influence of the nocturnal boundary layer on secondary trace species in the atmosphere at Dorset, Ontario

Measurements of Hydrogen Peroxide and Formaldehyde in Glendora, California

Quantum cascade laser-based multipass absorption system for hydrogen peroxide detection

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