Assessment of inorganic contaminants in golden mussel (Limnoperna fortunei) in Southern Brazil

Abstract

Elementos traço e majoritários foram determinados em mexilhão dourado (Limnoperna fortunei) coletados no canal São Gonçalo (Rio Grande-RS, Brasil). Digestão assistida por microondas em sistema fechado foi utilizada para decomposição das amostras com subsequente determinação elementar por técnicas espectrométricas. Os resultados mostraram que o tecido de mexilhão contém Ag,

Bioavailability of Metals at a Southeastern Brazilian Coastal Area of High Environmental Concern Under Anthropic Influence: Evaluation Using Transplanted Bivalves (Nodipecten nodosus) and the DGT Technique

“…The highest concentration for Co (0.93 μg g −1 ) was detected at Náutico site, but it was lower than what has been reported in the literature for bivalves, from 1.7 to 31 μg g −1 (Bustamante and Miramand 2005;Pereira et al 2012;Schintu et al 2008;Webb and Keough 2002). For Cu, the highest value obtained in this study was 7.8 μg g −1 found at Náutico site as well.…”

“…For Cu, the highest value obtained in this study was 7.8 μg g −1 found at Náutico site as well. Bellotto et al (2005) reported similar levels (7 μg g −1 ) in Perna perna clams in a control area on the Santa Catarina coast, Brazil, while Pereira et al (2012) found slightly higher concentrations (10 μg g −1 ) in Limnoperna fortunei from Rio Grande do Sul, Brazil. Lemos and Vieira (2013) reported Mn concentrations of 3.4 μg g −1 in Mytella guyanensis clams from Todos os Santos Bay (Bahia, Brazil), while Pereira et al (2012) reported levels of 236 μg g −1 in clams from south Brazil.…”

“…This value is b e l o w 5 . 0 μ g g − 1 p r e v i o u s l y r e p o r t e d i n M. galloprovincialis clams (Schintu et al 2008;Webb and Keough 2002) and 6.6 μg g −1 in L. fortunei clams (Pereira et al 2012). Metian et al (2009) compiled a literature review on Pb levels in scallops of different species from different parts of the world, and these authors found varying concentrations from 0.6 to 16 μg g −1 .…”

Determination of trace elements in raw material for polyurethane production using direct sampling graphite furnace atomic absorption spectrometry

“…In addition, to achieve efficient digestion and safe operational conditions using MAD (e.g., for polymer digestion), generally low sample mass (below 300 mg) is required in comparison to the digestion of biological samples. 14,15 It is important to point out that MAD is suitable for polymers digestion, especially when the concentration of analytes is in the range of mg g À1 or higher. On the other hand, combustion methods such as the combustion bomb 16,17 and microwave-induced combustion (MIC) 18,19 have shown suitable performance for polymer digestion, but these methods are not available for MDA digestion.…”