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Determination of Cu and Mn in seawater by graphite furnace atomic absorption spectrometry with the use of hydrofluoric acid as a chemical modifier

Abstract : The addition of hydrogen fluoride to a seawater sample in a graphite tube atomizer makes possible the removal of the major matrix components in an optimized pre-heating step, thus a near interference free determination of copper and manganese trace metals is achieved. The optimization studies were supported by a priori calculation of limit of detection (LOD) data. For optimized conditions, the experimentally determined LOD values (3σ, n=20) were 0.11 and 0.03 μg l-1 for Cu and Mn, respectively, for 20 μl applied seawater volume. With the use of calibration with standard addition, determined concentrations of Cu and Mn in CASS-2 seawater and in SLEW-1 estuarine water were in good agreement with certified values at the 95% confidence level (n=10). © 2002 Elsevier Science B.V. All rights reserved.
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https://hal.univ-brest.fr/hal-01771337
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Submitted on : Thursday, April 19, 2018 - 2:48:03 PM
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Jean Yves Cabon. Determination of Cu and Mn in seawater by graphite furnace atomic absorption spectrometry with the use of hydrofluoric acid as a chemical modifier. Spectrochimica Acta - Part B Atomic Spectroscopy, 2002, 57, pp.939--950. ⟨10.1016/S0584-8547(02)00025-3⟩. ⟨hal-01771337⟩

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