Separation of V(V)-4-(2-pyridylazo)resorcinolato complex from a large excess reagent using an ODS cartridge for high-performance liquid chromatography

Toru Takahashi, Emiko Kaneko, Takao Yotsuyanagi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A selective off-line preconcentration technique for the V(V) complex with 4-(2-pyridylazo)resorcinol has been developed and successfully applied to the determination of V(V) in an air-borne sample. The target complex was separated from excess reagent using an ODS cartridge and water as the eluent. The complex was then concentrated on another ODS cartridge using tetrabutylammonium bromide and eluted with methanol; the eluate was applied to a one-drop concentration/HPLC. A detection limit as low as (6.05 ± 0.82)× 10 -11 M (5 ppt) was achieved. 2006

Original languageEnglish
Pages (from-to)1585-1588
Number of pages4
Journalanalytical sciences
Volume22
Issue number12
DOIs
Publication statusPublished - 2006 Dec

ASJC Scopus subject areas

  • Analytical Chemistry

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