On-line preconcentration/separation of inorganic arsenic and antimony by poly (aryl ether ketone) containing pendant carboxyl groups prior to microwave plasma atomic spectrometry determinations

Junling Zhang, Gang Zhang, Chengji Zhao, Xinjun Quan, Qiong Jia

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

A flow injection-column adsorption preconcentration-microwave plasma atomic emission spectrophotometric (FI-column-MP-AES) method is developed for on-line determining trace levels of inorganic arsenic and antimony released from packaging glass containers. The developed methodology involves a micro-column packed with poly (aryl ether ketone) containing pendant carboxyl groups (PEK-L) for adsorption preconcentration procedure before the determination by MP-AES. The main parameters affecting the preconcentration/separation are investigated in details. Under the optimized conditions, the detection limit of the proposed technique is 0.27μgL-1 for As and 0.38μgL-1 for Sb. Precisions, evaluated as repeatability of results (relative standard deviation with n=7), are 2.8 and 1.8% respectively for As and Sb. The proposed method has been applied to different reference materials and glass bottle packaging samples with satisfactory results.

Original languageEnglish (US)
Pages (from-to)95-99
Number of pages5
JournalMicrochemical Journal
Volume100
Issue number1
DOIs
StatePublished - Jan 2012

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy

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