Development of A New Liquid-Phase Microextraction Method based on The use of Menthol/Decanoic Acid Hydrophobic Eutectic Solvent for Determination of basic Fuchsin Dye in Water

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Aydın F., Alkan V.

Global Summit on Advanced Materials and Sustainable Energy (G-AMSE22) , Van, Turkey, 3 - 04 October 2022, pp.234-235

  • Publication Type: Conference Paper / Summary Text
  • City: Van
  • Country: Turkey
  • Page Numbers: pp.234-235
  • Van Yüzüncü Yıl University Affiliated: Yes


A new liquid phase microextraction (LPME) method based on the use of hydrophobic eutectic solvent (HES) for spectrophotometric determination (λmax 555 nm) of toxic basic fuchsin (BF) dye in water has been developed as an environmentally friendly, low cost and practical extraction approach. Natural extraction solvent was formed by mixing and heating of biodegradable and nontoxic menthol (Me) and decanoic acid (DeA) components with a molar ratio of 1:2. The formation of hydrogen bonding between Me and DeA was characterized by FT-IR technique. Important analytical parameters affecting the extraction recoveries of analyte such as pH, mole ratio and volume of Me and DeA, type and volume of organic solvent used in dilution, sample volume, vortex and ultrasonic bath times used for ensuring effective mass transfer of the analyte, centrifuge time used for the complete separation of the water and HES phase containing analyte, salt (NaCl) and matrix effects have been examined and optimized. Under the optimized conditions, the developed method showed a good linearity with a regression coeffcient (R2) of 0.9994 in the range of 3.3-167 µg/L. Limit of detection (LOD), limit of quantitation (LOQ), relative standard deviation (RSD) and enrichment factor (EF) values were determined as 2.25 µg/L, 7.42 µg/L, 2.46% and 30, respectively. Addition/recovery test applications in real waters were carried out to verify the accuracy of the succested method. High recoveries (95-105%) demonstrated that the developed Me/DA-based HES-LPME method has been regarded as a promising candidate for monitoring and determining of BF dyestuff in water samples.