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On-line determination of manganese in solid seafood samples by flame atomic absorption spectrometry

Authors
Journal
Analytica Chimica Acta
0003-2670
Publisher
Elsevier
Publication Date
Volume
477
Issue
1
Identifiers
DOI: 10.1016/s0003-2670(02)01396-x
Keywords
  • Continuous Ultrasound-Assisted Extraction System
  • Flame Atomic Absorption Spectrometry
  • Manganese Determination
  • Seafood
Disciplines
  • Design

Abstract

Abstract Manganese is extracted on-line from solid seafood samples by a simple continuous ultrasound-assisted extraction system (CUES). This system is connected to an on-line manifold, which permits the flow-injection flame atomic absorption spectrometric determination of manganese. Optimisation of the continuous leaching procedure is performed by an experimental design. The proposed method allows the determination of manganese with a relative standard deviation of 0.9% for a sample containing 23.4 μg g −1 manganese (dry mass). The detection limit is 0.4 μg g −1 (dry mass) for 30 mg of sample and the sample throughput is ca. 60 samples per hour. Accurate results are obtained by measuring TORT-1 certified reference material. The procedure is finally applied to mussel, tuna, sardine and clams samples.

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