PT Journal AU Andersson, K Hallgren, C Levin, J Nilsson, C TI Chemosorption sampling and analysis of formaldehyde in air. Influence on recovery during the simultaneous sampling of formaldehyde, phenol, furfural and furfuryl alcohol. SO Scandinavian Journal of Work, Environment & Health PD 12VL PY 1981 BP 282 EP 289 IS 4 DI 10.5271/sjweh.2546 WP https://www.sjweh.fi/show_abstract.php?abstract_id=2546 DE 2,4-dinitrophenylhydrazone; air; amberlite XAD-2; analysis; chemosorption sampling; formaldehyde; formaldehyde alcohol; formaldehyde in air; furfural alcohol; furfuryl alcohol; gas chromatography; high-performance liquid chromatography; phenol alcohol; recovery; simultaneous sampling SN 0355-3140 AB

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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