Portable colorimetric detection of copper ion in drinking water via red beet pigment and smartphone

Recent endeavours in the development of organo chromo-fluorogenic probes towards the targeted detection of the toxic industrial pollutants Cu2+ and CN−: recognition to implementation in sensory device

“…The transduction of the colorimetric response of 69Á Á ÁCN À into RGBbased read-outs was further exquisitely synchronized by microcontroller-like wireless communique ´technology, divulging a new horizon in the supramolecular world of recognition events. Wang et al 112 used the natural food pigment red beet probe 79 for the selective recognition of aqueous Cu 2+ by discriminative chromogenic changes from purple to orange-yellow.…”

“…Wang et al 112 used the natural food pigment red beet probe 79 for the selective recognition of aqueous Cu 2+ by discriminative chromogenic changes from purple to orange-yellow.…”

Potensi Betanin Pada Analisis Logam Pb Dengan Metode Spektrofotometri UV-Vis

“…Penelitian lain berkaitan analisis logam dengan menggunakan zat warna alam juga telah dilakukan pada analisis tembaga (Cu) dengan menggunakan zat warna buah bit (Cao et al, 2019).…”

A ratiometric luminescence pH sensor based on YAG:V3+,V5+ nanoparticles

“…Limitations of organic pH indicators are their inaccuracy (dependent on the accuracy of the comparative analysis of the inductor color with the reference made by the human eye) and disposability. [22][23][24][25] Moreover, in this case, pH measurements can be significantly distorted by the complex environment and coexisting metal ions. 19,26 Despite the simplicity, wide operating range and fast mode of operation, the employment of electrochemical sensors is restricted due to their limitations such as rigid design, possibility of only single-point measurement, and their sensitivity to extraneous electrical and microwave fields.…”