6533b7dbfe1ef96bd1270186

RESEARCH PRODUCT

Development and Optimization of Pre-Concentration Procedure of Rare-Earth Elements (REEs) in Their Minerals, Using Microwave - Assisted Sample Dissolution for ICP-Atomic Emission Spectrometric Detection

Nicolas H. BingsIwan HastiawanJosé A. C. Broekaert

subject

Detection limitmicrowaveChemistry(all)RadiochemistryAtomic emission spectroscopyAnalytical chemistryGeneral Medicinechemistry.chemical_compoundREEsHydrofluoric acidpre-concentrationchemistryNitric acidMonaziteInductively coupled plasma atomic emission spectroscopymonaziteICP-OESChemical Engineering(all)Pre concentrationDissolutionxenotime

description

Abstract The aim of this research was to develop and optimize a procedure for determination of REEs in xenotime and monazite samples collected from Bangka Island, which were compared to Standard Monazite (71 AG) of Bureau of Analyzed Samples, London. ICP-OES method was used for the determination. The samples were dried and sterilized by heating for a week at 110 °C, before digesting with nitric acid and hydrofluoric acid, using a microwave-assisted digestion system. After a careful line selection, at the detection limits for all REEs in the ng/mL the REEs were reliably obtained at the 0.09 – 38% level.

10.1016/j.proche.2015.12.112http://dx.doi.org/10.1016/j.proche.2015.12.112