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Personal sampling of aniline in working sites by using high efficiency annular denuders

, : Personal sampling of aniline in working sites by using high efficiency annular denuders. Annali di Chimica 76(9-10): 355-364

A simple, sensitive and reliable method for the determination of aniline in working environments is described. Air samples is performed by means of High Efficiency Annular Denuders (HEADs) made of two concentric short glass tubes coated with oxalic acid. Vapour molecules are absorbed on the walls of the tubes while solid particles due to their lower diffusion velocity pass through them, and are collected downstream on an impregnated filter.


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