Open AccessBROMINE AND IODINE DETERMINATION IN EDIBLE SEAWEED BY ICP-MS AFTER DIGESTION BY MICROWAVE-INDUCED COMBUSTION
Author(s) -
Márcia F. Mesko,
Isis Gonçalves Toralles,
Marcelo Guerreiro Crizel,
Vanize C. Costa,
Natanael Rodrigo Xavier Pires,
Cláudio Martin Pereira de Pereira,
Rochele S. Picoloto,
Paola A. Mello
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140156
Subject(s) - bromine , iodine , microwave , combustion , microwave digestion , digestion (alchemy) , chemistry , environmental chemistry , pulp and paper industry , chromatography , organic chemistry , detection limit , engineering , telecommunications
A method based on microwave-induced combustion (MIC) was applied for the decomposition of different types of edible seaweed (Nori, Hijiki and Wakame) for subsequent determination of bromine and iodine by inductively coupled plasma mass spectrometry (ICP-MS). Decomposition of 500 mg of each sample was achieved in less than 30 min. A single and diluted solution (150 mmol L-1 (NH4)2CO3) was used for the absorption of both analytes and a reflux step of 5 min was applied to improve analyte recoveries. Accuracy was evaluated using certified reference materials and agreement was between 103 and 108% for both elements