title: Inductively coupled plasma mass spectrometry in comparison with neutron activation and ion chromatography with UV/VIS detection for the determination of lanthanides in plant materials.
abstract: Analytical performance of inductively coupled plasma mass spectrometry (ICP-MS) for determination of lanthanides in plant materials was investigated and compared with neutron activation analysis (NAA) as well as ion chromatography (IC) with UV-VIS detection. Two sample preparation protocols were tested: (i) microwave assisted digestion by concentrated nitric acid; (ii) microwave digestion involving silica and fluoride removal, followed by the selective and quantitative lanthanides group separation from the plant matrix. Several Certified Reference Materials (CRM) of plant origin were used for the evaluation of the accuracy of the applied analytical procedures. The consistency of results, obtained by various methods, enabled to establish the tentative recommended values (TRV) for several missing elements in one of CRMs. The ICP-MS, due to its very high sensitivity, has the potential to contribute to this aim. The discrepancy of the results obtained by various methods was discussed in a view of possible matrix effects related to the composition of investigated materials.
authors: Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland. ebulska@chem.uw.edu.pl
authors: Ewa
authors: E
authors: Bulska
authors: Bożena
authors: B
authors: Danko
authors: Rajmund S
authors: RS
authors: Dybczyński
authors: Agnieszka
authors: A
authors: Krata
authors: Krzysztof
authors: K
authors: Kulisa
authors: Zbigniew
authors: Z
authors: Samczyński
authors: Marcin
authors: M
authors: Wojciechowski
mesh_terms: D028581:Lanthanoid Series Elements / Q000032:analysis*; D057230:Limit of Detection; D013058:Mass Spectrometry / Q000379:methods* / Q000592:standards; D009502:Neutrons; D010944:Plants / Q000737:chemistry*; D012015:Reference Standards; D013056:Spectrophotometry, Ultraviolet / Q000379:methods* / Q000592:standards
chemical_list: D028581:Lanthanoid Series Elements