Microchimica Acta

, Volume 180, Issue 5–6, pp 501–507 | Cite as

Single-drop microextraction for the determination of manganese in seafood and water samples

  • Valfredo Azevedo LemosEmail author
  • Uelber Silva Vieira
Original Paper


We describe a method for single drop microextraction of manganese from fish, mollusk, and from natural waters using the reagent 1-(2-pyridylazo)-2-naphthol as the complexing agent and chloroform as the fluid extractor. After extraction, the analyte was directly submitted to graphite furnace electrothermal atomic absorption spectrometry. Once optimized, the method has a detection limit of 30 ng L−1, a limit of quantification of 100 ng L−1, and an enrichment factor of 16. Its accuracy was verified by applying the procedure to the following certified reference materials: apple leaves, spinach leaves, bovine liver, and mussel tissue. The procedure was also successfully applied to the determination of manganese in seafood and natural waters.


Preconcentration system using single-drop microextraction for the determination of manganese


Single-drop microextraction Manganese 1-(2-pyridylazo)-2-naphthol Water Seafood 



The authors acknowledge the financial support of the Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB) and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).


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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.Laboratório de Química Analítica (LQA)Universidade Estadual do Sudoeste da BahiaJequiéBrazil

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