【摘要】 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。更多还原

【Abstract】 The polarographic behavior of sodium 4-（8-aminoguino-line-5-azo-）benzene sulfonate（SAQABS） has been studied.In the buffer solution of 0.02 mol/LNH₃·H₂O-0.36 mol/L NH₄Cl,the SAQABS produced tow distinct cathodicpolarographic waves. The peaks potentals of the second derivative wave for SAQABS is-0.52 and -1.30 V（Vs·SCE）,respectively.By using first wave of SAQABS as the basisof quanlitative analysis,the line range is 1.0 × 10￣（-6）～8.0 ×10￣（-5）mol/L. The determina-tion for SAQABS has not been interfered by oxygen. The electrode process and reactionmechanism of SAQABS have been studied, too.更多还原