A new flow injection system, air-segmented FIA was proposed for rapid and sensitive determination of trace vanadium in tap and natural river waters based on its catalysis of oxidation of gallic acid by bromate.

• 应用空气整段间隔流动注射法与改进的钒-溴酸钾-没食子酸催化动力学反应体系相结合,建立了测定天然水体中痕量钒的催化动力学光度FIA法。 通过使用一个自制的进样阀,使样品带在反应管道中的留存时间得到延长,加热允许温度得到提高。