A synthesized ternary polymer composite and its use for SPE of trace metals in Coffee, tea and legumes

DAŞBAŞI T., SOYKAN C.

Food Chemistry, vol.365, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 365
  • Publication Date: 2021
  • Doi Number: 10.1016/j.foodchem.2021.130518
  • Journal Name: Food Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Food Science & Technology Abstracts, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Flame atomic absorption spectrometry, Solid phase extraction, Ternary polymer composite, Trace metals
  • Uşak University Affiliated: Yes

Abstract

A new synthesized ternary polymer composite, polystyrene/polyacrylonitrile/polyindole (PSt/PAN/PIN), was used as an adsorbent. The structure of synthesized composite was supported by FTIR, BET, X-RD, TGA, SEM and AFM technique. A SPE method with synthesized composite was developed for the preconcentration of chromium, copper, iron, manganese, lead and zinc ions. The adsorption capacity were found in the range of 37.4–56.7 mg g−1. Under the best conditions, the preconcentration factor of method was found as 100. Relative standard deviation was found at ≤ 3.3% (n = 11). The detection limits of analytes were obtained as: 0.9 μg L−1 for Cr(III), 1.2 μg L−1 for Cu(II), 2.0 μg L−1 for Fe(III), 1.4 μg L−1 for Mn(II), 0.9 μg L−1 for Pb(II) and 2.0 µg L−1 for Zn(II). Firstly, this SPE method was applied to certified reference material, and than coffee, tea, legumes. The trace metals was analyzed by flame atomic absorption spectrometry.