Trace Determination of Cadmium in Water Matrix by Matrix Matching Calibration Strategy-Based UV-Vis Spectrophotometer After Its Preconcentration


Water, Air, and Soil Pollution, vol.235, no.3, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 235 Issue: 3
  • Publication Date: 2024
  • Doi Number: 10.1007/s11270-024-06978-w
  • Journal Name: Water, Air, and Soil Pollution
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Agricultural & Environmental Science Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Compendex, Environment Index, Geobase, Greenfile, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Cadmium, Liquid-liquid microextraction, Tap water, UV-Vis spectrophotometry
  • Yıldız Technical University Affiliated: Yes


In this study, an analytical method based on UV-Vis spectrophotometer was developed for the determination of trace amounts of cadmium in tap water samples. The analyte in samples to be analyzed was firstly preconcentrated using the liquid-liquid microextraction method. (Z)-4-bromo-2[(naphthalene-2-ylimino)-methyl]phenol was used as a complexing agent in the microextraction process. Parameters affecting the efficiency of the liquid-liquid microextraction (LLME) process applied for preconcentration were optimized before starting the analysis. As a result of the analysis performed under the determined optimum conditions, linearity was observed between 0.050 and 4.0 mg/L. The detection limit was calculated as 0.017 mg/L as a result of eight repetitive analysis with the lowest concentration of cadmium in the linear region. The efficiency of our method in real samples was determined by recovery studies. As a result of the experiments performed on the tap water samples, the percent recovery values varied between 92 and 117%. These results are quite satisfactory in terms of demonstrating the applicability/accuracy of the method in the real sample.