基于罗丹明B衍生物的Pd^(2+)探针的合成与应用  

Synthesis and application of Pd^(2+) probe based on Rhodamine B derivatives

作　　者：陶文波[1] 张婷 胡乃梁[2] TAO Wen-bo;ZHANG Ting;HU Nai-liang(Jiangsu Yangnong Chemical Group Co.,Ltd.,Yangzhou 225009,China;College of Chemistry and Chemical Engineering,Anhui University,Hefei 230039,China)

机构地区：[1]江苏扬农化工集团有限公司,江苏扬州225009 [2]安徽大学化学化工学院,安徽合肥230039

出　　处：《化学研究与应用》2021年第12期2353-2357,共5页Chemical Research and Application

摘　　要：以罗丹明B衍生物和8-喹啉甲酸为原料制备了一种离子比色探针(RC),并将该新型比色探针用于识别金属离子。实验表明,探针RC在甲醇-水溶液中可以快速识别Pd^(2+),Pd^(2+)的加入使探针RC溶液的颜色由无色变为粉紫色,可以实现对Pd^(2+)的裸眼识别。紫外可见光谱研究表明,探针RC对Pd^(2+)表现出较高的选择性和灵敏度,并具有良好抗干扰能力,在569 nm处的最大吸光度在0.10-20μmol·L^(-1)范围内对Pd^(2+)浓度呈现良好的线性关系,检测限为0.056μmol·L^(-1),该探针实现了对Pd^(2+)的比色分析和定量检测。An ion colorimetric probe(RC)was prepared with Rhodamine B derivative and 8-quinolinic acid as raw materials, and the new probe was used to recognize metal ions.The experimental results showed that the probe RC could quickly recognize Pd^(2+)in methanol-water solution.The addition of Pd^(2+)changed the color of the probe RC solution from colorless to pink purple, which could realize the naked eye recognition of Pd^(2+).UV-Vis spectra showed that the probe RC showed high selectivity and sensitivity for Pd^(2+),and had good anti-interference ability.The maximum absorbance at 569 nm showed a good linear relationship with the concentration of Pd^(2+)in the range of 0.10~20 μmol·L^(-1),and the detection limit was 0.056 μmol·L^(-1).The probe could be used for colorimetric and quantitatively analysis of Pd^(2+).

关 键 词：罗丹明B衍生物 比色探针 裸眼识别 Pd^(2+) 

分 类 号：O657.3[理学—分析化学]