Determination of rhodamine B in water and cosmetics by switchable solvent-based liquid phase microextraction with spectrophotometric determination

ERBAŞ Z., Soylak M.

INSTRUMENTATION SCIENCE & TECHNOLOGY, vol.51, no.3, pp.290-302, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 51 Issue: 3
  • Publication Date: 2023
  • Doi Number: 10.1080/10739149.2022.2127109
  • Journal Name: INSTRUMENTATION SCIENCE & TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, Chemical Abstracts Core, Compendex, INSPEC
  • Page Numbers: pp.290-302
  • Keywords: Cosmetics, environmental water, homogeneous liquid-liquid microextraction, rhodamine B, spectrophotometry, switchable solvent, CLOUD POINT EXTRACTION, ENVIRONMENTAL WATER, TRACE DETERMINATION, MALACHITE GREEN, SYNTHETIC DYES, SAMPLES PRIOR, WASTE-WATER, SUDAN DYES, FOOD, CHROMATOGRAPHY
  • Erciyes University Affiliated: Yes

Abstract

A microextraction method has been developed for the determination of rhodamine B (Rh-B) in water and cosmetics by separation and preconcentration with liquid microextraction based upon a switchable hydrophilic solvent and determination by spectrophotometry. The analyte was extracted into the triethylamine (TEA) phase using sodium hydroxide (NaOH) to convert protonated triethylamine carbonate (P-TEA-C) to triethylamine. Various analytical parameters such as the pH of the sample solution, extraction solvent volume, and sample volumes affecting the quantitative recovery values of rhodamine B were optimized. The limit of detection (LOD) and limit of quantification (LOQ) were 2.96 and 9.88 ng/mL, respectively. The developed method was successfully applied to the determination of rhodamine B and satisfactory recovery values were obtained. The developed approach is fairly fast and an environmentally friendly alternative for the separation and preconcentration of rhodamine B water and cosmetic samples.