Preconcentration and Determination of Palladium by Solvent-Free Microextraction and Flame Atomic Absorption Spectrometry (FAAS) in Environmental Samples

Bahadir Z., Kultur G., YAZAR M., Cakir D., DURAN C.

ANALYTICAL LETTERS, vol.55, no.12, pp.1847-1856, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 12
  • Publication Date: 2022
  • Doi Number: 10.1080/00032719.2022.2030350
  • 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.1847-1856
  • Keywords: Cetyltrimethyl ammonium bromide (CTAB), environmental analysis, flame atomic absorption spectrometry (FAAS), microextraction, palladium, LIQUID-LIQUID MICROEXTRACTION, SOLID-PHASE EXTRACTION, TRACE PALLADIUM, PLATINUM, WATER, GOLD, SEPARATION, DUST
  • Karadeniz Technical University Affiliated: Yes


An alternative methodology based on the combination of microextraction with flame atomic absorption spectrometry (FAAS) is reported for the determination of Pd2+ in environmental samples. Cetyltrimethyl ammonium bromide (CTAB) was used as a cationic surfactant and a precipitating agent. The method involves the formation of a PdI42- complex with Pd2+ in the presence of iodide and CTAB causes PdI42- to precipitate. The method was performed using 0.01% (w/v) CTAB and 0.1% (w/v) KI in 35 mL 0.1% (v/v) nitric acid for the preconcentration of Pd2+. Under the optimized conditions, the calibration curve was linear between 20 and 170 mu g L-1 with a correlation coefficient of 0.9964. The limit of detection and preconcentration factor were 2.4 mu g L-1 and 35 for Pd2+. The results showed that this solvent-free microextraction is simple and sensitive for the preconcentration and determination of micrograms per liter of Pd2+ in seawater, stream water, and road dust with 94% to 103% spiked recoveries.