Synthesis and use of new magnetic adsorbent for sensitive, practical and simultaneous analysis Ibuprofen and Ketoprofen molecules in urine samples

Temiz Ş., ULUSOY S., ULUSOY H. İ., Durgun E., POLAT Ü., SARP G.

Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, vol.1251, 2025 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 1251
  • Publication Date: 2025
  • Doi Number: 10.1016/j.jchromb.2024.124404
  • Journal Name: Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Food Science & Technology Abstracts, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: HPLC-DAD, Ibuprofen, Ketoprofen, Magnetic solid phase extraction, Nonsteroidal anti-inflammatory drugs
  • Erciyes University Affiliated: Yes

Abstract

A new sample preparation and determination method, including HPLC-DAD analysis after Magnetic Solid Phase Extraction (MSPE), was developed to monitor the trace amounts of two types of nonsteroidal anti-inflammatory drugs (NSAIDs), Ibuprofen (IBP) and Ketoprofen (KP). In the proposed method, IBP and KP analytes were extracted from newly synthesized magnetic-based sorbent in a pH 4.0 buffer medium and enriched by desorbing again with ethanol to a smaller volume before chromatographic determinations. The samples were filtered and transferred to HPLC vials before analysis. The experimental variables were optimized step by step such as adsorption time, desorption solvent, pH, etc. After preconcentration of IBP and KP molecules by MSPE, determination of target molecules was carried out by isocratic elution of 30 % Methyl alcohol, 40 % Trifluoro Acetic Acid (TFA) (0.1 %, v:v), 30 % Acetonitrile. By using optimized conditions, the detection limits of target molecules were calculated as 3.43 ng mL−1 and 3.48 ng mL−1 for IBP and KP, respectively. The triplicate measurements made with model solutions containing 100 ng mL−1 of target molecules, RSD %values were found below 3.50 %. The developed method was successfully applied to synthetic urine and pooling urine samples. Finally, the practicality and suitability for green analytical chemistry of the proposed method was evaluated by using Blue Applicability Grade Index (BAGI) and Green Analytical Procedure Index (GAPI).