PMID: 37500Jan 1, 1979

Polarographic method of determining formaldehyde in air

Problemi na khigienata
E Koen, G Ivanov

Abstract

A rapid polarographic method for determination of formaldehyde microconcentrations in air has been developed. The method is highly sensitive - 0,5 cg/ml, which is 10 times higher than the sensitivity of the known methods now at use, with standard deviation less than 1.0. It is formaldehyde-selective - other saturated and unsaturated aldehydes, ketones, phenol, furfurol etc. do not interfere the determination. Sampling takes 15-20 min, polarographic analysis - 1 to 2 min. The method has been tested under conditions of production and proved to be highly reproducible and comparable with the colorimetric chromotropic acid technique.

Related Concepts

Air Pollutants, Environmental
Air Pollutants, Occupational
Formol
Hydrogen-Ion Concentration
Pulse Polarography

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