Microchimica Acta

, Volume 168, Issue 1–2, pp 153–159 | Cite as

Solidified floating organic drop microextraction for determination of trace amounts of zinc in water samples by flame atomic absorption spectrometry

  • Jingjun Ma
  • Jingwen Zhang
  • Xin Du
  • Xia Lei
  • Jingci LiEmail author
Original Paper


A simple and efficient liquid-phase microextraction technique was developed using ultrasound-assisted emulsification solidified floating organic drop microextraction (USAE-SFODME) combined with flame atomic absorption spectrometry, for the extraction and determination of trace amounts of zinc in water samples. 1-(2-Pyridylazo)-2-naphthol (PAN) was used as chelating agent. The main parameters affecting the performance of USAE-SFODME, such as type of extraction solvent as well as extraction volume, time, temperature, pH, the amount of the chelating agent, and salt effect were investigated and optimized. Under optimized experimental conditions a preconcentration factor of 76 was obtained using only 5.0 mL of water sample. The calibration graph was linear in the range from 20 to 450 μg L−1 with a detection limit of 0.79 μg L−1. The relative standard deviation for ten replicate measurements of 20 and 300 μg L−1 of zinc were 4.0 and 2.8 %, respectively. The proposed method was applied to tap water, sea water, and river water, and its accuracy was assessed through the analysis of certified reference water and recovery experiments.


Ultrasound-assisted emulsification Solidified floating organic drop microextraction Flame atomic absorption spectrometry Preconcentration Zinc 



This project was sponsored both by Development Foundation of the Department of Education of Hebei Province, P R China, and the Research Development Foundation of the Agricultural University of Hebei.

Supplementary material

604_2009_275_MOESM1_ESM.doc (229 kb)
Table S1 Recovery of ethanol from spiked beverages (DOC 229 kb)


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Jingjun Ma
    • 1
  • Jingwen Zhang
    • 1
  • Xin Du
    • 1
  • Xia Lei
    • 1
  • Jingci Li
    • 1
    Email author
  1. 1.Hebei Key Laboratory of Bioinorganic Chemistry, College of SciencesAgricultural University of HebeiBaodingPeople’s Republic of China

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