Determination of As(III) and As(V) in oilseeds by chronopotentiometric stripping analysis: development of a method.
Chronopotentiometric stripping analysis (CSA) was used for selective determination of As(III) and As(V) in different oilseeds. After the optimization of experimental parameters an appropriate procedure for sample pretreatment was developed. A detection limit of 2 microg/dm3 for As(III) was obtained with an electrolysis time of 600 s. This method was used for arsenic determination in sunflower, pumpkin, and flax seed, as well as for soy flakes and almond.
Svarc-Gajić
Jaroslava V
JV
Faculty of Technology, Department of Applied and Engineering Chemistry, Novi Sad, Serbia and Montenegro. jaroslava@technol.ns.ac.yu
Suturović
Zvonimir J
ZJ
Marjanović
Nikola J
NJ
Kravić
Snezana Z
SZ
D001151:Arsenic / Q000032:analysis*; D028464:Cucurbita / Q000737:chemistry; D019597:Flax / Q000737:chemistry; D006368:Helianthus / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D011199:Potentiometry / Q000379:methods*; D027861:Prunus / Q000737:chemistry; D011786:Quality Control; D012639:Seeds / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013025:Glycine max / Q000737:chemistry
D010938:Plant Oils; D001151:Arsenic