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. 1981 Dec;7(4):282-9.
doi: 10.5271/sjweh.2546.

Chemosorption Sampling and Analysis of Formaldehyde in Air. Influence on Recovery During the Simultaneous Sampling of Formaldehyde, Phenol, Furfural and Furfuryl Alcohol

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Chemosorption Sampling and Analysis of Formaldehyde in Air. Influence on Recovery During the Simultaneous Sampling of Formaldehyde, Phenol, Furfural and Furfuryl Alcohol

K Andersson et al. Scand J Work Environ Health. .
Free article

Abstract

A method based on trapping formaldehyde on a 2,4-dinitrodinitrophenylhydrazine-coated porous polymer (Amberlite XAD-2) was evaluated for air sampling in occupational environments. The aldehyde is converted to its 2,4-dinitrophenylhydrazone on the adsorbent. The influence of some organic compounds which often occur together with formaldehyde-furfural, phenol and furfuryl alcohol--was studied. The results show that the method allows the sampling of formaldehyde in the range 0.01--1.0 mg/m3 of air, based on a 3-1 (15 min) sample and a coating of 1%. Furfural, phenol, and furfuryl alcohol do not interfere and may be conveniently sampled at the same time. Formaldehyde and furfural hydrazones were analyzed by high-performance liquid chromatography, phenol and furfuryl alcohol by gas chromatography.

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