title: Stopped-in-loop flow analysis of trace vanadium in water.
abstract: The new concept of stopped-in-loop flow analysis (SIL-FA) is proposed, and an SIL-FA method for the catalytic determination of vanadium is demonstrated. In an SIL format, a sample solution merges with reagent(s), and the well-mixed solution is loaded into a loop. The solution in the loop is separated by a six-way switching valve from the main stream. While the reaction proceeds in the stationary loop, the SIL-FA system does not need to establish a baseline continuously. This leads to a reduction in reagent consumption and waste generation compared with traditional flow injection analysis.
authors.affiliation: Department of Applied Chemistry, Aichi Institute of Technology, Toyota, Japan. teshima@aitech.ac.jp
authors.forename: Norio
authors.initials: N
authors.lastname: Teshima
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Ohno
authors.forename: Tadao
authors.initials: T
authors.lastname: Sakai
mesh_terms: D002138:Calibration; D002384:Catalysis; D002413:Cations, Divalent / Q000032:analysis; D017022:Flow Injection Analysis; D007202:Indicators and Reagents; D017942:Nitric Acid / Q000737:chemistry; D013054:Spectrophotometry, Atomic; D014639:Vanadium / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D002413:Cations, Divalent; D007202:Indicators and Reagents; D014639:Vanadium; D017942:Nitric Acid