Switchable-Hydrophilicity Solvent Liquid-Liquid Microextraction Prior to Spectrophotometric Determination of Sudan I Dye in Spices

Al-Nidawi M., UZCAN F., Alshana U., SOYLAK M.

Analytical Letters, vol.57, no.2, pp.202-212, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 2
  • Publication Date: 2024
  • Doi Number: 10.1080/00032719.2023.2202915
  • Journal Name: Analytical Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Food Science & Technology Abstracts, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.202-212
  • Keywords: Microextraction, spectrophotometry, Sudan I dye, switchable-hydrophilicity solvent
  • Erciyes University Affiliated: Yes

Abstract

Sudan I was determined using a switchable-hydrophilicity solvent (SHS) followed by ultraviolet/visible spectrophotometric detection at 445.0 nm in a simple, fast, sensitive, and low-cost method. The optimum switchable-hydrophilicity solvent liquid-liquid microextraction (SHS-LLME) conditions were achieved with 600 µL of octylamine and 600 µL of 10.0 M sodium hydroxide in 20.0 mL of the sample. Limits of detection ranged from 0.009 to 0.021 µg mL−1. The coefficients of determination (R2) of the calibration graphs were higher than 0.9983 and relative standard deviations were below 8.6%. Enrichment factors ranged between 5.29 and 12.89. The proposed method was applied to spices with recoveries (%RR) between 92.5% and 104.4%.