title: Design of two channel flow cells for simultaneous determination of copper and iron.
abstract: Two compact double and serial flow cells were designed for simultaneous determination of trace copper and iron ions. 2-(5-Bromo-2-pyridylazo)-5-(N-propyl-N-sulfopropylamino)aniline(5-Br-PSAA) was used as a chromogenic reagent. 5-Br-PSAA reacted with Cu(II) and Fe(II) to form red chelate compounds and did not react with Cu(I) and Fe(III). Based on these characteristics, a three-lines flow system using two channel flow cells was assembled for the simultaneous determination of trace amounts of copper and iron and applied to the assay of ground water.
authors.affiliation: Department of Applied Chemistry, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Sakai
authors.forename: Y
authors.initials: Y
authors.lastname: Maeda
authors.forename: N
authors.initials: N
authors.lastname: Ura