应用化学2025，Vol.42Issue(6)：802-810,9.DOI:10.19894/j.issn.1000-0518.240235
一种水溶性水杨酸类Fe(Ⅲ)铁指示剂的合成及应用
Synthesis and Application of a New Water-Soluble Salicylic Acid Based Sensor for Recognition of Fe(Ⅲ)
摘要
Abstract
A new salicylic acid derivative(Z)-5-((1,3-dihydroxy-2-(hydroxymethyl)propan-2-ylimino)methyl-2-hydroxybenzoic acid(Tris-SA)was synthesized through the condensation reaction of 5-formylsalicylic acid with tris(hydroxymethyl)-aminomethane and was utilized for the colorimetric recognition of Fe3+in complex systems.Tris-SA exhibits good water solubility and no absorption in the visible light region.Upon the addition of Fe3+,a new absorption peak appears at 500 nm and the solution color changes from colorless to purple-red.Based on the linear relationship between the intensity of the absorption spectrum at 500 nm and the concentration of Fe3+,the detection limit was determined to be 3.421×10-6 mol/L.The influence of different pH values and the presence of metal ions on the Fe3+recognition capability of Tris-SA was also studied,and the performance of Tris-SA in recognizing Fe3+was compared with that of commercial indicators salicylic acid and sulfosalicylic acid.关键词
水杨酸衍生物/吸收光谱/Fe3+/比色识别Key words
Salicylic acid derivative/Absorption/Fe3+ion/Colorimetric recognition分类
化学引用本文复制引用
边美华,何雨茵,彭家宁,张兴森,覃宋林..一种水溶性水杨酸类Fe(Ⅲ)铁指示剂的合成及应用[J].应用化学,2025,42(6):802-810,9.基金项目
广西电网公司科技项目(No.GXKJXM20230096)资助 Supported by Guangxi Power Grid Corporation Science and Technology Project(No.GXKJXM20230096) （No.GXKJXM20230096）
