Tunable diode laser absorption spectrometer measurements of ambient nitrogen dioxide, nitric acid, formaldehyde, and hydrogen peroxide in Parlier, California

Sauer, Claudia G.; Pisano, John T.; Fitz, Dennis R.

doi:10.1016/s1352-2310(03)00004-9

Cited by 23 publications

(11 citation statements)

References 33 publications

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“…The advantages of in situ spectroscopic methods are their compound specificity and high time resolution. A number of techniques have been reported for formaldehyde measurements including tunable diode laser spectroscopy (TDLAS) [14,15], differential optical absorption spectroscopy (DOAS) [16,17], Fourier transform infrared spectroscopy (FT-IR) [18] and remote spectroscopic methods using satellite based sensors [19][20][21]. Other specific techniques for formaldehyde are laser induced fluorescence [22], fluorimetric methods based on the Hantzsch reaction [23,24] and an enzymatic method [25].…”

Section: Introductionmentioning

confidence: 99%

Denuder sampling techniques for the determination of gas-phase carbonyl compounds: A comparison and characterisation of in situ and ex situ derivatisation methods

Kahnt

Iinuma

Böge

et al. 2011

Journal of Chromatography B

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Section: Introductionmentioning

confidence: 99%

Denuder sampling techniques for the determination of gas-phase carbonyl compounds: A comparison and characterisation of in situ and ex situ derivatisation methods

Kahnt

Iinuma

Böge

et al. 2011

Journal of Chromatography B

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“…The other continuous analyzer was completely fulfilled in IRCELYON laboratory. It is based on formaldehyde trapping in a 3-methylbenzthiazolinone-2-hydrazone solution in acid media by means of a turning coil sampler tube through which air and aqueous solution flow concurrently (François et al 2005 ; Lee and Wang 2004 ; Sauer et al 2003 ), derivatisation with a blue cation UV detected by light reflection through a capillary. Liquid core waveguide LCW (810 μm i.d.)…”

Section: Methodsmentioning

confidence: 99%

Multi-tool formaldehyde measurement in simulated and real atmospheres for indoor air survey and concentration change monitoring

Chiappini

Dagnelie

Sassine

et al. 2010

Air Qual Atmos Health

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Formaldehyde is of particular health concern since it is carcinogenic for human and ubiquitous in indoor air where people spend most of their time. Therefore, it is important to have suitable methods and techniques to measure its content in indoor air. In the present work, four different techniques have been tested in the INERIS exposure chamber and in indoor environments in comparison to a standard active method: passive sampling method based on the reaction of 2,4-dinitrophenylhydrazine with formaldehyde, two on-line continuous monitoring systems based on fluorescence and UV measurements and a portable commercialised analyser based on electrochemical titration. Two formaldehyde concentrations, about 10 and 25 μg m−3 were generated in an exposure chamber under controlled conditions of temperature, relative humidity, and wind speed to simulate real conditions and assess potential influence on passive sampling and continuous systems response. Influence of sampling periods on passive sampling has also been evaluated. The real atmosphere experiments have been performed in four different indoor environments: an office, a furniture shop, a shopping mall, and residential dwellings in which several potential formaldehyde sources linked to household activities have been tested. The analytical and sampling problems associated with each measurement method have been identified and discussed. An overall agreement between each technique has been observed and continuous analyzers allowed for formaldehyde concentrations change monitoring and secondary formation of that pollutant observation.

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“…The derivatization method with 2,4-DNPH is sensitive but the hydrazone is not always stable and reacts with ozone and other air oxidants. In most cases, spectrometric techniques such as Fourier Transform InfraRed absorption (FTIR) [7], [8], Tunable Diode Laser Absorption Spectroscopy (TDLAS) [9] and Differential Optical Absorption Spectroscopy (DOAS) [10] are specific, quantitative and offer a high time resolution (few minutes). However, these instrumentations are heavy, bulky, expensive and usually need to be handle by a specialist.…”

Section: Introductionmentioning

confidence: 99%

Development of a Polyaniline/Fluoral-P Chemical Sensor for Gaseous Formaldehyde Detection

et al. 2012

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Formaldehyde detection in air is of particular interest since this compound is classified as carcinogenic by the International Agency for Research on Cancer (IARC). It is abundant indoors (with an indoor/outdoor ratio around 5 to 15) and has as main origin the emissions from building or furniture materials. Among all the strategies currently used to control formaldehyde concentrations, none of them combines both good selectivity, low detection limit and easiness of use at low cost. To achieve this goal, we focused on the specific reaction between fluoral-p and formaldehyde to develop a sensor made of an intrinsically conducting polymer and fluoral-p. Formaldehyde reacts with fluoral-p to produce 3, 5-diacetyl-1, 4-dihydro-2, 6-lutidine (DDL) and ammonia. Polyaniline (PAni) was chosen as the conducting polymer due to its ammonia sensitivity as previously described by the authors. The performances of this new formaldehyde sensor have been evaluated in terms of sensibility, response time and detection limit.

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Tunable diode laser absorption spectrometer measurements of ambient nitrogen dioxide, nitric acid, formaldehyde, and hydrogen peroxide in Parlier, California

Cited by 23 publications

References 33 publications

Denuder sampling techniques for the determination of gas-phase carbonyl compounds: A comparison and characterisation of in situ and ex situ derivatisation methods

Denuder sampling techniques for the determination of gas-phase carbonyl compounds: A comparison and characterisation of in situ and ex situ derivatisation methods

Multi-tool formaldehyde measurement in simulated and real atmospheres for indoor air survey and concentration change monitoring

Development of a Polyaniline/Fluoral-P Chemical Sensor for Gaseous Formaldehyde Detection

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