Evaluation of the Diffusion Sampling Device for the Determination of Formaldehyde in Indoor Air.

Sekine, Yoshika; Butsugan, Michio; Usuki, Hidetoshi; Kitahara, Takio

doi:10.5985/jec.11.511

Cited by 10 publications

(7 citation statements)

References 3 publications

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“…5 and summarized in Table 2. Sampling rate for formaldehyde was slightly smaller than those of previous passive samplers employing DNPH: DSD-DNPH (Sigma-Aldrich Japan, Supelco, 89 ml/min 12) ) and Radiello R sampler (Fondazione Salvatore Maugeri IRCCS, Padova, Italy, 99 ml/min 22) ), or greater than that of GMD badge (GMD Systems, Exton, PA, USA, 25 ml/min 9) ). The sampling rates were high enough to realize short-term samplings in indoor environments such as workplace, museum, school, residences and so on.…”

Section: Determination Of Sampling Ratesmentioning

confidence: 85%

“…Duplicate injections were made for standards, samples and blanks. Samples collected by both active and passive DNPH samplers were determined by HPLC, following the method described by Sekine et al 12) …”

Section: Methodsmentioning

confidence: 99%

“…[7][8][9][10][11][12] The reaction between aldehydes/ketones and DNPH is rapid and quantitative in the presence of acid, and the product can be determined by UV-HPLC with excellent sensitivity. However, several problems were pointed out in the use of DNPH, including unstable property of some DNPH derivatives such as acrolein and crotonaldehyde during storage, 13) hazardous property such as mutagenicity 14) and interference of ozone.…”

Section: Introductionmentioning

confidence: 99%

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A Passive Sampler for the Determination of Carbonyl Compounds in Indoor Air Employing O-(4-cyano-2-ethoxybenzyl)hydroxylamine as Reactive Adsorbent

Onishi

Sekine

Sugihara

et al. 2007

JOURNAL OF HEALTH SCIENCE

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Authors have developed a new analytical method for gaseous carbonyl compounds in indoor air using a passive sampler. The sampler consists of a porous polyethylene cylinder uniformly packed with O-(4-cyano-2-ethoxybenzyl)hydroxylamine (CNET) coated silica gel as a reactive adsorbent. After sampling, CNET derivatives were eluted by acetonitrile and subsequently determined by HPLC. Sampling rates for formaldehyde, acetaldehyde and acetone were determined by a small chamber experiment with a constant gas generation system and resulted in 74 ml/min for formaldehyde, 44 ml/min for acetaldehyde and 42 ml/min for acetone. Effects of exposure time (8 and 24 hr), temperature (10, 25 and 40• C) and relative humidity (31-94%) on the rate were not apparent under the given conditions. The passive sampler was then applied for field measurements of carbonyl compounds in indoor air and gave similar results when compared to active samplings using 2,4-dinitrophenylhydrazine (DNPH) coated cartridges. The Ames test showed the CNET is preferable in safety handling because of its lower mutagenic activities than those of DNPH. Carbonyl compounds can be determined with reduced interference of ozone, because the CNET was less degradable when exposed to ozone compared with DNPH. Therefore, the CNET is a possible alternative to DNPH as trapping reagent in the passive sampling device for the determination of formaldehyde, acetaldehyde and acetone in indoor air.

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Section: Determination Of Sampling Ratesmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Passive Sampler for the Determination of Carbonyl Compounds in Indoor Air Employing O-(4-cyano-2-ethoxybenzyl)hydroxylamine as Reactive Adsorbent

Onishi

Sekine

Sugihara

et al. 2007

JOURNAL OF HEALTH SCIENCE

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“…The porous PE tube is a good draft shield; previous tests of DSD-DNPH showed the sampling rate for formaldehyde was independent on wind speed between 0.2 to 4 m/sec. 9) Effect of wind speed in the model laboratory was not found on the conversion of collected amount of glutaraldehyde to air concentration.…”

Section: Field Evaluationmentioning

confidence: 92%

“…Then, authors have applied and evaluated a previous passive diffusion sampler for aldehydes and ketones (DSD-DNPH) 8,9) for the determination of glutaraldehyde in air at ppb level. The sampler is capable of taking samples of glutaraldehyde gas from the atmosphere at a rate controlled by porous polyethylene tube.…”

Section: Evaluation Of Passive Sampler For Measurement Of Glutaraldehmentioning

confidence: 99%

Evaluation of Passive Sampler for Measurement of Glutaraldehyde in Occupational Indoor Air

Sekine

Oikawa

Saitoh³

et al. 2005

JOURNAL OF HEALTH SCIENCE

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Glutaraldehyde has been in widespread use in hospitals to sterilize instruments. Routine exposure to glutaraldehyde is, however, known to cause adverse health effects. Authors have applied and evaluated a passive sampler (DSD-DNPH) for the determination of glutaraldehyde in air at ppb level. The sampler consists of porous polyethylene tube uniformly packed with 2,4-dinitrophenylhydrazine (DNPH) coated silica gel as a reactive adsorbent. The sampling duration of this device was designed for 8 hr to apply to field measurements in workplace. After sampling, DNPH derivatives were eluted by acetonitrile and subsequently determined by HPLC. A sampling rate of the sampler was determined by chamber experiments and resulted in 40 ml/min for glutaraldehyde. Effects of temperature and humidity on the rate were not apparent. No significant effect of exposure time, air concentration and back diffusion on the sampling performance was suggested by dynamic adsorption model. The sampling rate was then validated in field measurements comparing with a previous active sampling. The diffusion sampler was successfully used for determination of 4-180 ppb of glutaraldehyde and gave similar results to active sampling in indoor air. Limit of quantitation (LOQ) of the diffusion sampler resulted in 3.9 ppb for 8-hr exposure in air.

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Measurement of gaseous and aqueous trace formaldehyde

Dasgupta

Luke

2005

Analytica Chimica Acta

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Evaluation of the Diffusion Sampling Device for the Determination of Formaldehyde in Indoor Air.

Cited by 10 publications

References 3 publications

A Passive Sampler for the Determination of Carbonyl Compounds in Indoor Air Employing O-(4-cyano-2-ethoxybenzyl)hydroxylamine as Reactive Adsorbent

A Passive Sampler for the Determination of Carbonyl Compounds in Indoor Air Employing O-(4-cyano-2-ethoxybenzyl)hydroxylamine as Reactive Adsorbent

Evaluation of Passive Sampler for Measurement of Glutaraldehyde in Occupational Indoor Air

Measurement of gaseous and aqueous trace formaldehyde

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