Salting-out-assisted liquid–liquid extraction for the preconcentration and quantitative determination of eight herbicide residues simultaneously in different water samples with high-performance liquid chromatography. Issue 4 (4th March 2021)

• Record Type: Journal Article
• Authors: Teju, Endale; Tadesse, Bezuayehu; Megersa, Negussie
• Is Part Of: Separation science and technology. Volume 56:Issue 4(2021)
• Page Start: 719
• Page End: 729
• Publication Date: 2021-03-04
• Subjects: Atrazine -- phase separation -- salting-out-assisted liquid–liquid extraction -- s-triazine -- trace enrichment; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2016.1276596
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: Salting˗out-assisted liquid–liquid extraction coupled with high-performance liquid chromatography was developed for selective extraction and preconcentration of five s -triazine herbicides and three major metabolites of atrazine simultaneously. Under the optimum conditions, detection and quantification limits (ng mL −1 ) were found in the range 0.02–0.19 and 0.06–0.65, respectively. Linearity ranges (ng mL −1 ) of 1–60 (ametrin), 2–160 (desethylatrazine, desisopropyl atrazine, secbumetone and terbutryn) and 4–240 (hydroxyatrazine and aziprotryn) were obtained. The relative standard deviations for the intra- and inter-day precisions were in the ranges 0.3–8.5% and 5.4–9.8%, respectively. Relative recoveries of three spiked water samples were in the ranges of 72.5–114.6, 74.6–109.2 and 62.5–109.6% for the river, lake and underground water samples, respectively.