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Determination of thorium with DBF‐arsenaz by flow‐injection analysis
Author(s) -
Yang Yi,
Cai RuXiu,
Zeng YunE
Publication year - 1993
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19930110110
Subject(s) - chemistry , thorium , flow injection analysis , spectrum analyzer , relative standard deviation , color reaction , chromatography , flow (mathematics) , detection limit , radiochemistry , analytical chemistry (journal) , nuclear chemistry , uranium , organic chemistry , nuclear physics , reagent , mechanics , electrical engineering , engineering , physics
A sensitive, selective, rapid, simple, and convenient method for the determination of thorium was developed. The method was based on the color reaction of thorium with DBF‐arsenazo in a strong acidic medium (4 mol/L HCl). The flow‐injection technique was used with an automated flow‐injection analyzer. Beer's law was obeyed in the range of 0–1.4 μg/mL. The relative standard deviations were less than 1%.