Title of article :
Polyelectrolyte Multilayers on Magnetic Silica as a New Sorbent for the Separation of Trace Silver in the Leaching Solutions of Antibacterial Products and Determination by Flame Atomic Absorption Spectrometry
Author/Authors :
Xiang, Guoqiang School of Chemistry and Chemical Engineering - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , Wang, Yule School of Food Science and Technology - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , Zhang, Heng School of Chemistry and Chemical Engineering - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , Fan, Huanhuan School of Chemistry and Chemical Engineering - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , Jiang, Xiuming School of Chemistry and Chemical Engineering - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , He, Lijun School of Chemistry and Chemical Engineering - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA , Fan, Lu School of Food Science and Technology - Henan University of Technology - Zhengzhou - 450001 - P.R. CHINA
Abstract :
A novel, magnetic silica sorbent with polyelectrolyte multilayers (PEMs) on its
surface was prepared, and was used for Magnetic Solid Phase Extraction (MSPE) of trace A+
via Flame Atomic Absorption Spectrometry (FAAS). The experimental parameters for the MSPE
procedure, such as the pH, type, and concentration of eluent, ultrasonic time and effects of coexisting
ions were investigated. The detection limit of the developed method was 0.17 ng/mL
for Ag+ with an enrichment factor of 35. This method was also successfully applied to the determination
of trace Ag+ in the leaching solution of different antibacterial products with satisfactory results
Keywords :
FAAS , Antibacterial products , Silver , Magnetic solid phase extraction , Polyelectrolyte multilayers
Journal title :
Astroparticle Physics
