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Determining the arsenic, cadmium, lead, copper and chromium contents by atomic absorption spectrometry in Pangasius fillets from Vietnam
Author(s) -
Mologi Luciano,
Vitali Luciano,
Ploêncio Leandro AS,
Santos Jacson N,
Daguer Heitor
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7486
Subject(s) - pangasius , arsenic , cadmium , chromium , atomic absorption spectroscopy , environmental chemistry , chemistry , hazard quotient , contamination , copper , fish <actinopterygii> , heavy metals , fishery , biology , catfish , ecology , physics , organic chemistry , quantum mechanics
BACKGROUND Pangasius is a fish produced on a large scale in Vietnam and exported to many countries. Since river contamination from human activities can affect the safety of this food, fish consumption can cause exposure to potentially toxic elements for humans. The aim of this study, therefore, was to assess arsenic, cadmium, lead, copper and chromium contents by atomic absorption spectrometry in Pangasius fillet produced in the provinces of Dong Thap and Can Tho (Vietnam) and exported to Brazil. RESULTS The limits of detection were: arsenic 0.5443 µg kg −1 , cadmium 0.0040 mg kg −1 , chromium 0.0004 mg kg −1 , copper 0.0037 mg kg −1 and lead 0.0284 mg kg −1 . Analysis of 20 samples showed results below the limit of detection for arsenic, chromium and lead, while copper average concentration was 0.0234 mg kg −1 . Cadmium average concentration was 0.0547 mg kg −1 , with no significant difference between the two regions studied. CONCLUSION The samples of Pangasius had no detectable concentrations of arsenic, chromium, copper and lead, and do not represent a hazard to public health. However, cadmium analysis revealed non‐compliant samples, demonstrating the importance of monitoring the quality of imported Pangasius fish. © 2015 Society of Chemical Industry