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研究了４－（８－氨基喹啉－５－偶氮）－苯横酸钠（ＳＡＯＡＢＳ）的极谱行为。在０．０２ｍｌ／ＬＮＨ＿３·Ｈ＿２Ｏ－０．３６ｍｏｌ／ＬＮＨ＿４Ｃｌ的缓冲溶液中，ＳＡＱＡＢＳ产生两个明晰的阴极化极谱波，其二次导数波的峰电位分别为－０．５２Ｖ和－１．３０Ｖ（Ｖｓ．ＳＣＥ）。用ＳＡＱＡＢＳ的第一个波作为定量分析的基础，其线性范围为１．０×１０￣（－６）～８．０×１０￣（－５）ｍｏｌ／Ｌ。氧不干扰ＳＡＱＡＢＳ的测定。还研究了ＳＡＱＡＢＳ的电极过程及反应机理。
The polarographic behavior of 4- (8-aminoquinoline-5-azo) -benzene sodium (SAOABS) was studied. In the buffer solution of 0.02ml / LNH_3 · H_2O-0.36mol / LNH_4Cl, SAQABS produced two clear cathodic polarographic waves, the second derivative wave peak potentials were -0.52V and -1.30V (Vs.SCE). The first wave of SAQABS was used as a basis for quantitative analysis with a linear range of 1.0 × 10 -6 to 8.0 × 10 -5 mol / L. Oxygen does not interfere with the determination of SAQABS. The electrode process and reaction mechanism of SAQABS were also studied.