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提出了用单扫示波极谱法测定酪氨酸的分析方法。酪氨酸在 HNO3溶液中 ,以 Na NO2 做催化剂进行反应后生成硝基化合物 ,反应产物在碱性溶液介质中于 - 0 .46V和 - 0 .58V(vs.SCE)左右有两个二阶导数还原峰 P1和 P2 ,其中峰 P1的峰电流与酪氨酸的浓度在 4× 1 0 -8～ 4× 1 0 -5mol/ L 范围内呈线性关系 ,检出限为 2× 1 0 -8mol/ L,多数氨基酸不干扰测定 ,应用于血清和黄酒中酪氨酸的测定 ,与其它方法测定的结果一致。并对电极反应机理进行了研究
An analytical method for the determination of tyrosine by single sweep polarography is proposed. Tyrosine in HNO3 solution, with NaNO2 as a catalyst to react to generate nitro compounds, the reaction product in alkaline solution medium - 0.46V and - 0. .58 V (vs.SCE) around two second-order Derivative reduction of P1 and P2 peak, peak P1 peak current and tyrosine concentration in the 4 × 10 -8 ~ 4 × 10 -5 mol / L within a linear range, the detection limit of 2 × 10 - 8mol / L, the majority of amino acids do not interfere with the determination of serum and rice wine used in the determination of tyrosine, and other methods measured the same. The electrode reaction mechanism was also studied