Optical chemical sensor of Gd(iii) based on 5-(2′-bromophenyl- azo)-6-hydroxypyrimidine-2,4-dione immobilized on poly(methyl methacrylate) and 2-nitrophenyloctylether matrix

Abstract

A novel optical chemical sensor (optode) was fabricated for the determination of Gadolinium ions.

The highly selective green colorimetric detection of yttrium ions in biological and environmental samples using the synergistic effect in an optical sensor

“…At acidic pH levels, the diminished sensor response is probably because hydrogen ions vie with Y 3+ ions for APASA binding. 59 …”

Fabrication of a novel palladium membrane sensor for its determination in environmental and biological samples

“…25 As a result, there is a great need for designing and building novel instruments for the detection and identification of diverse contaminants in the environment. 26–34…”

“…25 As a result, there is a great need for designing and building novel instruments for the detection and identication of diverse contaminants in the environment. [26][27][28][29][30][31][32][33][34] Optical chemical sensors (optodes), which are cost-effective and selective tools for determining the presence of heavy metal ions, have undergone signicant development in recent years. [32][33][34][35][36] To provide straightforward and quick measurement methods with improved selectivity and low detection limits, optodes are typically employed in conjunction with low-cost spectrophotometric techniques.…”

“…[26][27][28][29][30][31][32][33][34] Optical chemical sensors (optodes), which are cost-effective and selective tools for determining the presence of heavy metal ions, have undergone signicant development in recent years. [32][33][34][35][36] To provide straightforward and quick measurement methods with improved selectivity and low detection limits, optodes are typically employed in conjunction with low-cost spectrophotometric techniques. 37,38 One of the critical steps for building optical sensors is immobilization ionophores on transparent membranes.…”

An innovative approach in titanium determination based on incorporating 2-amino-4-((4-nitrophenyl)diazenyl)pyridine-3-ol in a PVC membrane

“…However, they may provide lower sensitivity compared to more sophisticated and expensive techniques. [34][35][36][37][38][39][40] Therefore, there is a need for increased research attention to develop accurate methods that combine selectivity and sensitivity for the determination of titanium concentration. By focusing on the development of such methods, researchers can address the existing limitations and pave the way for improved titanium analysis techniques.…”