Sensitized spectrophotometric determination of trace amounts of copper(II) ion using diacetyl monooxime in surfactant media

Abstract

A simple and accurate spectrophotometric method for determination of trace amounts of Cu 2+ ions in various real samples has been described. The spectrophotometric determination of trace amount of Cu 2+ ion using diacetyl monooxime (DAMO) in the presence of cetyltrimethylammonium bromide (CTAB) as cationic surfactant has been carried out. The Beer's law is obeyed over the concentration range of 0.1-22.0 µgmL-1 of Cu 2+ ion with the detection limits of 1.3 ngmL-1. The influence of type and amount of surfactant, pH, complexation time and amount of ligand on sensitivity of method were optimized. Finally the repeatability, accuracy and the effect of interfering ions on the determination of Cu 2+ ion were evaluated.

Column solid‐phase extraction of sunset yellow and spectrophotometric determination of its use in powdered beverage and confectionery products

“…In solid‐phase extraction studies for inorganic and organic species, pH is an important parameter for quantitative recovery of analytes (Soylak et al. , 2003; Ghaedi et al. , 2009; Chalapathi et al.…”

A ratiometric fluorescent sensor for detection of metformin based on terbium–1,10-phenanthroline–nitrogen-doped-graphene quantum dots

“…According to the data obtained the tolerance limits (the concentration ratio of interfering species or analyte that produces a relative error of <5% in sensitivity of the method) were calculated therefore the developed dual-emission ratiometric uorescent nanosensor is able to detect MTF with a good selectivity in real samples. 51,52 3.9. Application of the developed method for the determination of MTF in plasma samples…”

Preconcentration of Sunset Yellow Dye using B-Cyclodextrin Epichlorohydrin Polymer as the Solid Phase Extractant

“…The analytical techniques frequently employed for the determination of the colors include spectrophotometry [5][6][7][8] , column solid-phase extraction 9 , derivative spectrophotometry 10 , HPLC 11 , kinetic determination 12 , second derivative spectrophotometry 13 , adsorptive sripping voltammetric 14 . In all instances, most of these methods require a highly qualified operator and high cost instrumentation.…”