邻香兰素乙醇溶液比色法检测Fe3+

人体中铁元素含量过多会引起人体组织损坏、皮肤色素沉着、肝脾功能性障碍等病状。研究利用Fe³⁺与邻香兰素乙醇溶液反应生成藏蓝色络合物的特性，实现了对溶液中Fe³⁺的快速检测。邻香兰素乙醇溶液对Fe3+有较强的选择性。在Fe³⁺浓度为0～200 μM的范围内，不同浓度的Fe³⁺的紫外光的吸收大小与Fe³⁺浓度呈良好的线性关系（R=0.99299）,邻香兰素乙醇溶液对Fe³⁺的检测限约为1 μM。

Colorimetric Detection of Fe~(3+) by Using o-Vanillin in Ethanol Solution

Excessive iron content in human body can cause human tissue damage, skin pigmentation, liver and spleen dysfunction and other symptoms. In this paper, the reaction of Fe³⁺ with o-vanillin ethanol solution to form the dark blue complex was studied. O-vanillin ethanol solution has strong selectivity to Fe³⁺. In the range of Fe³⁺ concentration 0～200 μM , the ultraviolet light absorption of Fe³⁺ with different concentrations showed a good linear relationship with Fe³⁺ concentration (R=0.99299), the detection limit of o-vanillin ethanol solution on Fe³⁺ was about 1 M.