Green Surfactant Assisted-Solidified Floating Organic Drop Micro-Extraction for the Preconcentration of Trace Cobalt and Determination by Flame Atomic Absorption Spectrometry

Unaldi M., YILDIZ O. B., DURUKAN TEMUGE İ.

ANALYTICAL LETTERS, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2024
  • Doi Number: 10.1080/00032719.2024.2437804
  • 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
  • Hacettepe University Affiliated: Yes

Abstract

This study focuses on solidified floating organic drop microextraction without using a chelating agent for the preconcentration of trace cobalt. Cobalt formed a complex with the sodiumdodecylbenzenesulfonate that was extracted into 1-dodecanol for determination by flame atomic absorption spectrometry. Several factors such as pH, sodiumdodecylbenzenesulfonate concentration, extraction time, stirring rate, and temperature, were investigated. Enhancement factor of 80 was achieved, the calibration curve displayed linearity from 0.01 to 0.075 mg/L, with a limit of detection (3s) of 2.8 mu g/L and a limit of quantification (10s) of 9.3 mu g/L. The relative standard deviation (RSD) for 10 replicate measurements of 10 mu g/L cobalt was 2.1%.