Evaluation of an alternative sorbent for passive sampling of the herbicides 2, 4-D and Dicamba in the air. Issue 7 (3rd August 2021)

• Record Type: Journal Article
• Authors: Ceolin, Bruna Christofari; Kemmerich, Magali; Noguera, Matheus Machado; Camargo, Edinalvo Rabaioli; Avila, Luis Antonio de
• Is Part Of: Journal of environmental science and health. Volume 56:Issue 7(2021)
• Page Start: 634
• Page End: 643
• Publication Date: 2021-08-03
• Subjects: Volatilization -- Determination method -- Auxinic herbicides -- Vapor phase -- Strata-X®; Pesticides -- Environmental aspects -- Periodicals; Food contamination -- Periodicals; Agricultural wastes -- Environmental aspects -- Periodicals; Ecology -- periodicals; Pesticides -- toxicity -- periodicals; Food Contamination -- periodicals; 363.73
• DOI: 10.1080/03601234.2021.1929019
• Languages: English
• ISSNs: 0360-1234

Abstract

Abstract: The present study aimed to evaluate the Strata-X ® sorbent, commonly used in cartridges, through analysis by high-performance liquid chromatography coupled with mass spectrometry. Due to the different physical-chemical characteristics of the compounds, different conditions of chromatography and mass analysis were necessary. The developed methods were validated in terms of selectivity, linear range, linearity (coefficient of determination, r 2 ), the limit of detection (LOD), the limit of quantification (LOQ), accuracy (recovery, %), and precision (RSD, %). The results allowed us to select efficient extraction methods, using methanol acidified to pH 2 with formic acid, to elute the herbicides 2, 4-D and dicamba in both sorbent materials. Besides, the Strata-X ® sorbent was efficient in the sorption of analytes; thus, we indicate it for potential use in air sampling as an alternative to XAD-2.