On-line preconcentration/determination of zinc from water, biological and food samples using synthesized chelating resin and flame atomic absorption spectrometry


YILMAZ S., TOKALIOĞLU Ş. , ŞAHAN S. , ÜLGEN A. , Sahan A., Soykan C.

JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY, cilt.27, ss.85-90, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 27 Konu: 2
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.jtemb.2012.07.007
  • Dergi Adı: JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
  • Sayfa Sayıları: ss.85-90

Özet

An on-line flow injection pre-concentration-flame atomic absorption spectrometry method was developed to determine trace zinc in water (tap, dam, and well water), biological (hair and nail), and liver samples. As a solid phase extractant, a synthesized new chelating resin, poly(2-thiozylmethacrylamide-co-divinylbenzene-co-2-acrylamido-2-methyl-1-propane sulfonic acid) was used. The resin was characterized by Fourier transform infrared spectroscopy, elemental analysis, and surface area by nitrogen sorption. A pre-concentration factor of 40-fold for a sample volume of 12.6 mL was obtained by using the time-based technique. The detection limit for the pre-concentration method was found to be 2.2 mu g L-1. The precision (as RSD,%) for 10 replicate determinations at the 0.04 mu g mL(-1) Zn concentration was 1.2%. The calibration graph using the pre-concentration system for zinc was linear with a correlation coefficient of 0.998 in the concentration range from 0.005 to 0.05 mu g mL(-1). The applicability and accuracy of the developed method were estimated by the analysis spiked water, biological, liver samples (83-105%), and also certified reference material TMDA-70 (fortified lake water) and SPS-WW1 Batch 111-Wastewater. The results were in agreement with the certified values. (C) 2012 Elsevier GmbH. All rights reserved.