In this study,fluorinating vaporization combined with ETV-ICP-AES technique was used to determine yttrium for which refractory carbide is easily formed.The absolute detection limit is 12 pg,and three-order magnitude o...In this study,fluorinating vaporization combined with ETV-ICP-AES technique was used to determine yttrium for which refractory carbide is easily formed.The absolute detection limit is 12 pg,and three-order magnitude of improvement is obtained in comparison with the conventional vaporization ETV-ICP-AES.No memory effect is observed.The relative standard deviation is better than 5%.Some factors affecting fluorinating vaporization,including matrix effect are discussed.This technique is applied to determine yttrium in La_2O_3.展开更多
文摘In this study,fluorinating vaporization combined with ETV-ICP-AES technique was used to determine yttrium for which refractory carbide is easily formed.The absolute detection limit is 12 pg,and three-order magnitude of improvement is obtained in comparison with the conventional vaporization ETV-ICP-AES.No memory effect is observed.The relative standard deviation is better than 5%.Some factors affecting fluorinating vaporization,including matrix effect are discussed.This technique is applied to determine yttrium in La_2O_3.
