نوع مقاله : مقاله پژوهشی
نویسنده
پژوهشکده چرخه سوخت هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 8486-11365، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسنده English
In this study, an online homogenous sedimentation method was utilized for the in situ production of micro particles to be used as an adsorbent for solid-phase extraction of molybdenum. The process involved the dissolution of yellow cake and the conversion of molybdenum (VI) into a hydrophobic complex, followed by the addition of n-dodecyltrimethylammonium bromide as a precursor to the sample solution. A precipitant reagent, sodium hexafluoride, was then introduced into the solution through a T connection in a flow system. Micro particles were produced as a result of the interaction between the precursor and the precipitant reagent, which then adsorbed the molybdenum complex. After filtration, a desorption reagent was passed over the filter to release the adsorbed molybdenum, which was subsequently measured using ICP-OES. The method yielded a linear range of 0.2-200 µg/L, with a limit of detection of 0.05 µg/g. The repeatability of the method (RSD) was found to be 8.1% and 4.3% for concentrations of 10 and 100 µg/g, respectively. Overall, this method demonstrates potential for the precise and accurate determination of molybdenum in yellow cake samples.
کلیدواژهها English