Simultaneous optical detection and extraction of cobalt (II) from lithium ion batteries using nanocollector monoliths

SA El-Safty, MR Awual, MA Shenashen… - Sensors and Actuators B …, 2013 - Elsevier
This study aims to develop novel nanocollectors for potential application in cobalt [Co (II)]
detection and removal from lithium ion batteries. The optical nanocollectors were fabricated …

Removal and recovery of mercury (II) from hazardous wastes using 1-(2-thiazolylazo)-2-naphthol functionalized activated carbon as solid phase extractant

AM Starvin, TP Rao - Journal of hazardous materials, 2004 - Elsevier
As a part of removal of toxic heavy metals from hazardous wastes, solid phase extraction
(SPE) of mercury (II) at trace and ultra trace levels was studied using 1-(2-thiazolylazo)-2 …

A highly selective optical sensor for catalytic determination of ultra-trace amounts of nitrite in water and foods based on brilliant cresyl blue as a sensing reagent

AA Ensafi, M Amini - Sensors and Actuators B: Chemical, 2010 - Elsevier
A new optical sensor has been developed for nitrite determination based on the use of
brilliant cresyl blue (BCB) immobilized on triacetyl cellulose membrane using absorption …

Design of a novel optical sensor for determination of trace amounts of copper by UV/vis spectrophotometry in the real samples

E Pourbasheer, S Morsali, A Banaei… - Journal of Industrial and …, 2015 - Elsevier
The characterization of an optode is described for detection of copper (II) based on the
immobilization of 6-bromo-3-(2-methyl-2, 3-dihydrobenzo [d] thiazol-2-yl)-2H-chromen-2 one …

Development of a high-performance optical sensor for sensitive detection of cobalt ions in pharmaceutical, food, biological, and environmental samples

N Hassan, S El-Bahy, AO Babalghith… - … Acta Part A: Molecular …, 2025 - Elsevier
A re-generable optical chemical sensing film was created using a modified chitosan film that
incorporates immobilized 4-(thiazol-2-yldiazenyl) benzene-1, 3-diol (TDBD) for the detection …

Detection of heavy metals in water by fluorescence spectroscopy: On the way to a suitable sensor system

H Prestel, A Gahr, R Niessner - Fresenius' journal of analytical chemistry, 2000 - Springer
In order to develop a fiber optical heavy metal ion detection system, the applicability of
selected complexing agents with fluorescent properties has been studied. Beginning with …

Functionalized hexagonal mesoporous silica monoliths with hydrophobic azo-chromophore for enhanced Co (II) ion monitoring

SA El-Safty - Adsorption, 2009 - Springer
We introduce here new optical strips for the colorimetric monitoring of Co (II) ions in an
aqueous solution. The optical nanosensors were designed by direct immobilizing azo …

A combinatorial approach to discover new chelators for optical metal ion sensing

F Szurdoki, D Ren, DR Walt - Analytical chemistry, 2000 - ACS Publications
This paper reports the synthesis and characterization of metal-binding indicators with
diverse optical responses on exposure to various heavy metal ions. A combinatorial …

Detection of heavy metals by an optical fiber sensor with a sensitive cladding including a new chromogenic calix [4] arene molecule

M Benounis, N Jaffrezic-Renault, H Halouani… - Materials Science and …, 2006 - Elsevier
Industrial processes introduce up to a million different pollutants into the atmosphere and the
aquatic ecosystem. Heavy metals are one group of these substances, although not all of …

Design of a copper (II) optode based on immobilization of dithizone on a triacetylcellulose membrane

A Safavi, M Bagheri - Sensors and Actuators B: Chemical, 2005 - Elsevier
The characterization of an optical sensor membrane is described for the determination of
copper (II) based on the immobilization of dithizone on a triacetylcellulose membrane. This …