本文报道一种新的钾试剂和低浓度钾离子的高效富集剂:1,2,4,5-苯四酚-四乙酸(1,)。叙述了它的合成方法,并研究了它对多种体系中低浓度钾离子的化学行为,初步探讨了其捕钾机理。我们以对苯二酚为原料,按下列路线合成1: This paper reports a new potassium reagent and a low concentration of potassium ion efficient enrichment agent: 1,2,4,5-benzenetetraol-tetraacetic acid (1,). Its synthesis method was described, and its chemical behavior at low concentrations of potassium ions in various systems was studied. The potassium-capturing mechanism was preliminarily discussed. We hydroquinone as raw materials, according to the following route synthesis 1: