Colorimetric assay of fluoride goes digital: On the spot testing of F− ions in water using smartphone's digital imaging and test strip assay by a novel chromofluorogenic receptor based on 1,8-naphthalimide
作者:Priya Yadav、Harshita Laddha、Madhu Agarwal、Ragini Gupta
DOI:10.1016/j.molliq.2020.114690
日期:2021.2
A novel hydrazone Schiff's base, (E)-6-(2-(2,4-dihydroxybenzylidene)hydrazinyl)-2-(2-hydroxyethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione, DHB based on 1,8-naphthalimide has been designed and synthesized that acts as a dual mode chromofluorogenic sensor with a noticeable color change from orange to blue and fluorometric “turn-off” response towards F− with high sensitivity and selectivity. A detailed
新型Sch席夫碱(E)-6-(2-(2,4-二羟基亚苄基)肼基)-2-(2-羟乙基)-1 H-苯并[ de ]异喹啉-1,3(2 H)-基于1,8-萘二甲酰亚胺二酮,DHB的设计和合成了作为与从橙色到蓝色和荧光“关断”朝˚F响应一个明显的颜色改变双模chromofluorogenic传感器-具有高灵敏度和选择性。详细研究以建立与F中的受体DHB的结合机制-离子已经通过目视比色(肉眼),紫外-可见光谱和荧光光谱,然后将其进一步通过验证进行11 H NMR滴定研究和理论计算。有趣的是,对受体DHB和F之间形成显色模型颜色响应-离子通过使用智能手机读取数字图像的RGB值的探讨。智能手机的F基于定量-培训者进行处理,并提供简单,廉价,快速,方便,易于使用的分析工具,任何人都可以在偏远地区的轻松使用最小化昂贵的,精密的仪器。测试条验证DHB充当F的定量的更便宜和精通固态探针-离子。缔合常数和检测与F的极限-确定为0