Title of article :
The extraction and speciation of arsenic in rice flour by HPLC–ICP-MS
Author/Authors :
Narukawa، نويسنده , , Tomohiro and Inagaki، نويسنده , , Kazumi and Kuroiwa، نويسنده , , Takayoshi and Chiba، نويسنده , , Koichi، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2008
Abstract :
Several solvent mixtures and techniques for the extraction of arsenic (As) species from rice flour samples prior to their analysis by HPLC–ICP-MS were investigated. Microwave-assisted extraction using water at 80 °C for 30 min provided the highest extraction efficiency. Total recoveries of extracted As species were in good agreement with the total As concentrations determined by ICP-MS after microwave-assisted acid digestion of the samples. Arsenite [As(III)], arsenate [As(V)] and dimethylarsinic acid (DMAA) were the main species detected in rice flour samples.
Keywords :
Arsenic compounds , Speciation , HPLC–ICP-MS , rice flour , extraction , Microwave-assisted digestion
