Química Nova ()

VALIDAÇÃO DE UM MÉTODO ANALÍTICO PARA DETERMINAÇÃO DE MARCADORES ORGÂNICOS GEOQUÍMICOS EM AMOSTRAS DE SEDIMENTOS MARINHOS

  • Edna Wisnieski,
  • Liziane M. M. Ceschim,
  • César C. Martins

DOI
https://doi.org/10.5935/0100-4042.20160103
Journal volume & issue
Vol. 39, no. 8
pp. 1007 – 1014

Abstract

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This paper describes the validation of an alternative method for determination of n-alkanes, sterols (OLs) and n-alkanols (ALCs) in marine sediments, through adaptation of clean up. The method reduced the material consumption, the discards produced and working time. The recovery percentages were 60-129% for n-alkanes, 52-67% for OLs and 43-141% for ALCs, acceptable values compared to other studies. The application in Antarctic marine sediments presented satisfactory results indicating contribution of planktonic organisms, higher animals and a little contribution from vegetation.

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