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合成了新型席夫碱类试剂茚三酮缩7－氨基－8－羟基喹啉－5－磺酸，建立了该试剂催化荧光测定痕量钒（Ⅴ）的新体系，反应在盐酸体系中进行，其λex／λm为325／448（nm），钒（Ⅴ）的量在0～40．0μg／L、40.0～160．0μg／L呈良好线性关系，检测下限为1.7μg／L，方法用于水样痕量钒的测定，结果令人满意。此外，还详细探讨了反应机理和动力学方程。
A novel Schiff base reagent ninhydrin 7-amino-8-hydroxyquinoline-5-sulfonic acid was synthesized and a new system was developed for the determination of trace vanadium (Ⅴ) using this reagent. The reaction was carried out in a hydrochloric acid system , The λex / λm was 325/448 (nm). The amount of vanadium (V) was in the range of 0-40.0μg / L and 40.0-160.0μg / L. The detection limit was 1.7μg / L. Determination of trace amounts of vanadium in water samples, the results are satisfactory. In addition, the reaction mechanism and kinetic equation are also discussed in detail.