Определение редкоземельных элементов, Y, Zr, Nb, Hf, Ta, Th в стандартных образцах серии ДВ методом масс-спектрометрии с индуктивно-связанной плазмой

To refine the acceptance data we redetermine Y, Zr, Nb, Hf, Ta, Th in four Far East magmatic rocks: GSO 4317-88 meimechit enriched with olivine; GSO 4319-88 hornblende hyaloandesite; GSO 4323-88 biotitic trachyrhyolite; GSO 4322-88 greisenized granite. International reference samples JGb-1, JA-1, JG-1a (GSJ), and DNC-1 (USGS) are used as standards for comparison. Sample preparation: acidic decomposition using microwave firnace and fusion with lithium metaborate. Average results and standard deviations (for 4 - 5 parallel measurements) are presented and compared with certified and valuation data.