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Indoor VOCs From Household Floor Dust: Comparison of Headspace with Desorbed VOCs; Method for VOC Release Determination
Author(s) -
Wolkoff P.,
Wilkins C. K.
Publication year - 1994
Publication title -
indoor air
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.387
H-Index - 99
eISSN - 1600-0668
pISSN - 0905-6947
DOI - 10.1111/j.1600-0668.1994.00005.x
Subject(s) - tenax , chemistry , environmental chemistry , thermal desorption , volatile organic compound , desorption , gas chromatography , gas chromatography–mass spectrometry , mass spectrometry , chromatography , organic chemistry , adsorption
One hundred and eighty eight Volatile organic compound (VOCs) were identified from dust emission, dust headspace, and in air sampling in a residence by sampling on Tenax TA followed by thermal desorption and HRGC/MS . Of these, 83 compounds were found in dust headspace. Aliphatic aldehydes (C 4‐8 and octane were major contributors to headspace gas chromatograms while the total ion current response for desorbed VOCs (120° C) was dominated by n‐alkanes (C 7‐16 ), n‐ and branched alkanals (C 4‐10 and alkanoic acids (C 2‐14 ). Many of the identified VOCs could be products of microbial or human metabolism. Dust volatiles resulting from desorption were compared w dust headspace VOC analyses and found to be comparable considering the temperature difference. A method for determination of total VOC (TVOC‐dust) emission at 120°C, was developed. Variation in desorption TVOC analyses was mainly due to sample heterogeneity.