Flow injection determination of Se in dietary supplements using TiO2 mediated ultraviolet-photochemical volatile species generation
作者: E. NovákováO. LinhartV. ČervenýP. RychlovskýJ. Hraníček
作者单位: 1Charles University, Faculty of Science, Department of Analytical Chemistry, Albertov 6, Prague 2 CZ 128 43, Czech Republic
刊名: Spectrochimica Acta Part B: Atomic Spectroscopy, 2017, Vol.134 , pp.98-104
来源数据库: Elsevier Journal
DOI: 10.1016/j.sab.2017.06.007
关键词: Dietary supplementsSeleniteSelenateUV-photochemical volatile species generation
英文摘要: Abstract(#br)This paper proposes a method for determination of selenium content in samples of dietary supplements using TiO 2 mediated UV-photochemical vapor generation with quartz furnace atomic spectrometric detection. The flow-injection method was optimized for determination of selenium in the form of selenite or selenate ions. The limits of detection of the proposed method are 0.89ngmL −1 and 0.68ngmL −1 for selenite and selenate, respectively. Extraction in neutral medium was used for the leaching of selenate and NaOH solution was used for the leaching of selenite. The methods accuracy was verified against the declared amounts of Se in five different samples of...
全文获取路径: Elsevier  (合作)
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关键词翻译
关键词翻译
  • volatile 挥发性的
  • generation 世代
  • species 
  • photochemical 光化学的
  • determination 测定
  • ultraviolet 紫外线的
  • injection 贯入
  • dietary 饮食的