Validation of an analytical methodology for the quantitative analysis of petroleum hydrocarbons in marine sediment samples

• Main Authors: Eloy Yordad Companioni Damas, Miriam Odette Cora Medina, Ana Catalina Núñez Clemente, Miguel Ángel Díaz Díaz, Luis González Bravo, Rolando Marbot Ramada, Rodny Montes de Oca Porto
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2009-01-01
• Series: Química Nova
• Subjects: validation; marine sediments; petroleum hydrocarbons
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000400006

This work describes a validation of an analytical procedure for the analysis of petroleum hydrocarbons in marine sediment samples. The proposed protocol is able to measure n-alkanes and polycyclic aromatic hydrocarbons (PAH) in samples at concentrations as low as 30 ng/g, with a precision better than 15% for most of analytes. The extraction efficiency of fortified sediments varied from 65.1 to 105.6% and 59.7 to 97.8%, for n-alkanes and PAH in the ranges: C16 - C32 and fluoranthene - benzo(a)pyrene, respectively. The analytical protocol was applied to determine petroleum hydrocarbons in sediments collected from a marine coastal zone.