Journalartikel

Jahr der Veröffentlichung: 2022

Seiten: 496-508

Zeitschrift: Journal of Soils and Sediments

Bandnummer: 22

Heftnummer: 2

ISSN: 1439-0108

eISSN: 1614-7480

Open Access Status: Hybrid

DOI Link: https://doi.org/10.1007/s11368-021-03080-0

Verlag: Springer

Abstract: 

Purpose
Organochlorine pesticides (OCPs) like lindane and DDT have been used extensively after World War II until the 1990s. Still, residues of these pesticides can be found in agricultural soils all over the world, especially in developing countries. Often, they occur in extensive areas and elevated concentrations so that food safety is jeopardized. Hence, simple, cheap, and fast analytical methods are needed for a straight-forward assessment of risks. A miniaturized solid-liquid extraction combined with solid-phase microextraction (SPME) based on a proven ISO method is presented.

Methods
The performance of the method is evaluated by extracting three different soils which were spiked with HCH and DDT congeners, and trifluralin, and aged for 35 days. The results are compared with those of a modified quick, easy, cheap, efficient, rugged, and safe (QuEChERS) method. For further validation, both methods are applied to three environmental soil samples.

Results
Validation results show limits of detection and quantification as well as recovery rates in good agreement with standard requirements. The new method was found to be quicker than QuEChERS, which requires time-consuming preparation of reagents.

Conclusion
Merits include low time and sample volume requirements (0.5 g) and the possibility to extract many samples simultaneously, which allows the screening of large sample sizes to determine the pollution status of whole landscape regions. However, access to an automated SPME apparatus is assumed. The authors can recommend this method as a cheap and fast alternative where SPME is available.

Harvard-Zitierstil: Simon, M., Knuth, D., Böhm, L., Wiltschka, K., Schatz, M. and Düring, R. (2022) A miniaturized method for fast, simple, and sensitive pesticide analysis in soils, Journal of Soils and Sediments, 22(2), pp. 496-508. https://doi.org/10.1007/s11368-021-03080-0

APA-Zitierstil: Simon, M., Knuth, D., Böhm, L., Wiltschka, K., Schatz, M., & Düring, R. (2022). A miniaturized method for fast, simple, and sensitive pesticide analysis in soils. Journal of Soils and Sediments. 22(2), 496-508. https://doi.org/10.1007/s11368-021-03080-0