SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, sa.240, ss.118572, 2020 (SCI-Expanded)
A study,where uraniumwas online enriched and laser diode spectrometry was determined, was performedwith
some bottled mineralwater samples. A uranium-imprinted polymer (PMDU)was synthesized and characterized
for preparation of a specific adsorbent of UO2
2+ cations. The homemade system preconcentrated uranium in
PMDU resin and determined using an Arsenazo III complex at 650 nm in a combined laser diode spectrometer.
All analytical parameters of the system were optimized at 5.5 of the retention pH, 6.0 N HClO4 of eluent concentration,
0.05% of Arsenazo III complex, and a 40mmcoil length. The effect of interferent ionswas also investigated
and LOD and LOQ values were found to be 0.54 and 1.80 ng mL−1 respectively. Sample throughput was 12 h−1,
the preconcentration factor was 50, and RSD% value was 1.1. Certified reference materials of TMDA 52.3 and
TMDA 62.2 were quantitatively analyzed and the proposed method was successfully applied to the bottled mineral
water samples.