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

来自 Semantic Scholar

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103

作者：

G Xiang，Y Wang，H Zhang，H Fan，X Jiang，L He，L Fan

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摘要：

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 co-existing ions were investigated. The detection limit of the developed method was 0.17 ng/mLfor 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.

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关键词：

Polyelectrolyte multilayers Magnetic solid phase extraction Silver Antibacterial products FAAS

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年份：

2017