Rapid determination of copper and lead in Panax notoginseng by magnetic solid-phase extraction and flame atomic absorption spectrometry

Rapid determination of copper and lead in Panax notoginseng by magnetic solid-phase extraction... Fe3O4/graphene magnetic nanoparticles were synthesized and used as adsorbents for the dispersive solid-phase extraction of copper and lead in Panax notoginseng. The properties of the nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM) and X-ray diffraction (XRD). The effects of parameters like the adsorbent amount, pH, adsorption time, mutual ion interferences, desorption solution and reusability of the adsorbent for the recovery of trace elements were examined. Copper and lead were then quantified using a flame atomic absorption spectrophotometer. Under the optimized conditions, the detection limits for copper and lead were 0.22 and 0.87 μg L−1, respectively. Repeatability (within 1 day) and reproducibility (between days) of the method were less than 2.2 and 4.8 %, respectively. The proposed method was applied for determination of Cu and Pb in Panax Notoginseng and satisfactory relative recoveries (96.4–102.0 %) were achieved. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Rapid determination of copper and lead in Panax notoginseng by magnetic solid-phase extraction and flame atomic absorption spectrometry

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2340-7
Publisher site
See Article on Publisher Site

Abstract

Fe3O4/graphene magnetic nanoparticles were synthesized and used as adsorbents for the dispersive solid-phase extraction of copper and lead in Panax notoginseng. The properties of the nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM) and X-ray diffraction (XRD). The effects of parameters like the adsorbent amount, pH, adsorption time, mutual ion interferences, desorption solution and reusability of the adsorbent for the recovery of trace elements were examined. Copper and lead were then quantified using a flame atomic absorption spectrophotometer. Under the optimized conditions, the detection limits for copper and lead were 0.22 and 0.87 μg L−1, respectively. Repeatability (within 1 day) and reproducibility (between days) of the method were less than 2.2 and 4.8 %, respectively. The proposed method was applied for determination of Cu and Pb in Panax Notoginseng and satisfactory relative recoveries (96.4–102.0 %) were achieved.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Nov 13, 2015

References

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