A novel sensitive, selective, and reversible cobalt (II) ion optical sensor was prepared by the
incorporation of 5-[o-carboxyphenylazo] 2, 4-dihydroxybenzoic acid [CPDB] and sodium …

In the study, a simple and green vortex assisted-ionic liquid based dispersive liquid liquid
microextraction (VA-IL-DLLM) combined with flame atomic absorption spectrometry (FAAS) …

A series of transition metal complexes of alloxan monohydrate (H2L1) and ninhydrin (H2L2)
have been prepared where metal ions are Fe (III), Co (II), Ni (II), Cu (II), Zr (IV), and Mo (VI) …

In this work, an effective nanocomposite‐based adsorbent directed to adsorb cobalt (Co2+)
ion was successfully synthesized from graphene oxide (GO), polyvinyl alcohol (PVA), and …

Background: Cobalt is an essential trace element, but it can also rarely cause cobalt toxicity
due to its release from cobalt-containing medical devices. Currently, there are no approved …

Objective: A new cloud point extraction (CPE) method was developed for pre concentration
of trace cobalt (II) in water samples. Methods: The method is based on the complexation …

A rapid, accurate, and sensitive spectrophotometric method for the determination of micro
amounts of hydroxylamine and hydrazine is described. The proposed method is based on …

Abstract A methoxyphenylcycl [3, 2, 2] azine derivative (MPC) was synthesized and its
function as a fluorescent probe for metal ions was investigated. Studies revealed that the …

This paper presents the results of a kinetic study performed between ninhydrin and a Ni (II)
dipeptide complex under various conditions. The rate of formation of the imine adduct was …

Extraction equilibria of cobalt (II) from aqueous chloride solutions with 3-hexylaminopyridine
(3-HAP) dissolved in kerosene was investigated. Results showed that KCl salt can greatly …