Quantitative analysis and spatial and temporal distribution of volatile organic compounds in atmospheric air by utilizing drone with miniaturized samplers.

Chemosphere
Hangzhen LanMarja-Liisa Riekkola

Abstract

Our second generation air sampling drone system, allowing the simultaneous use of four solid phase microextraction (SPME) Arrow and four in-tube extraction (ITEX) units, was employed for collection of atmospheric air samples at different spatial and temporal dimensions. SPME Arrow coated with two types of materials and ITEX with 10% polyacrylonitrile as sorbent were used to give a more comprehensive chemical characterization of the collected air samples. Before field sampling, miniaturized samplers went through quality control and assurance in terms of reproducibility (RSD ≤14.1%, N = 4), equilibrium time (≥10 min), breakthrough volume (1.8 L) and storage time (up to 48 h). 128 air samples were collected under optimal sampling conditions from July to September 2019 at the SMEAR II station and Qvidja farm, Finland. 347 VOCs were identified in the air samples either on-site or in the laboratory by thermal desorption gas chromatography - mass spectrometry, and they were quantified/semiquantified using Partial Least Squares Regression models. Individual models were developed for the different coatings and packing materials using gas phase standards obtained by an automatic permeation system. Average gas phase VOC concentrations ran...Continue Reading

References

Nov 13, 2004·Analytical Chemistry·Yong Chen, Janusz Pawliszyn
May 22, 2016·Environmental Science and Pollution Research International·Matias KopperiMarja-Liisa Riekkola
Nov 22, 2016·Journal of Cheminformatics·Yannick Djoumbou FeunangDavid S Wishart
Dec 24, 2016·Sensors·Tommaso Francesco VillaFelipe Gonzalez
Sep 19, 2018·Analytica Chimica Acta·Tomasz MajchrzakTomasz Dymerski
Apr 30, 2019·Journal of Chromatography. a·Jose Ruiz-JimenezMarja-Liisa Riekkola
Oct 23, 2019·Analytical Chemistry·Patricia Belinda Crosby Forbes

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