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在HCl-Sb(Ⅱ)—钼酸铵—丙酮—丁酮体系中,磷的化合物有一个十分尖锐、灵敏的络合吸附波。其峰电位为-0.42伏(对饱和甘汞电极)。测定下限是6×10(-8)M.可用于矿物、岩石、土壤等试样中微量磷的测定。
In HCl-Sb (II) -ammonium molybdate-acetone-butanone system, phosphorus compounds have a very sharp and sensitive complex adsorption wave. Its peak potential is -0.42 volts (for saturated calomel electrodes). The lower limit of determination is 6 × 10 (-8) M. It can be used for the determination of trace phosphorus in mineral, rock and soil samples.