Supramolecular Solvent-Based Microextraction of Propachlor and Prometryn Herbicides in Soil Samples Prior to Liquid Chromatographic Analysis
Abstract
Supramolecular solvents (SUPRASs) are the
nano-structured liquids generated from amphiphiles through a self-assembly
process, and constitute an alternative to molecular organic solvents with becoming more environmentally friendly in sample
preparation step. In this study, a SUPRAS-based analytical method has
been proposed for the microextraction of propachlor and prometryn herbicides in
soil samples. The method involved the vortex mixing of the 300 mg of soil
sample with 300 µL of SUPRAS for 8 min, subsequent centrifugation for the phase
separation, and direct analysis of the SUPRAS phase by liquid chromatography
with ultraviolet detection. Under optimal extraction
conditions, the extraction recoveries for the herbicides ranged from 81 to 87 %.
The method detection limits for propachlor and prometryn were 0.07 and 0.01
μg/g, respectively. Relative standard deviations obtained for the herbicides
were less than 8.8 % and 12.1 % for intra-day and inter-day precisions,
respectively. The microextraction of related herbicides from soil samples
collected from the Zonguldak region was carried out efficiently. The recoveries
obtained from spiked soil samples ranged from 80 to 108
%.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Publication Date
December 24, 2018
Submission Date
August 13, 2018
Acceptance Date
October 27, 2018
Published in Issue
Year 2018 Volume: 39 Number: 4