Immobilized calcein for metal ion preconcentration

Journal Article · Sun Apr 01 00:00:00 EST 1984 · Anal. Chem.; (United States)

OSTI ID:5529222

A technique is demonstrated for the preparation of immobilized calcein, (2',7',((bis(carboxymethyl)amino)methyl)-fluorescein), to be used for metal ion preconcentration. The calcein is of particular interest as a reagent for transition metals. The preconcentration is demonstrated for cobalt, copper, and nickel ions. Fluorescence spectra of the calcein at various pH values were obtained. Values were determined for the conditional binding constants of immobilized and dissolved calcein with the transition metal ions as a function of pH.

• OSTI ID: 5529222
• Journal Information: Anal. Chem.; (United States), Vol. 56:4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT
CHEMICAL REACTIONS
FLUORESCENCE SPECTROSCOPY
COPPER
FLUORESCEIN
NICKEL
CHEMICAL REACTION KINETICS
EMISSION SPECTRA
EXPERIMENTAL DATA
PH VALUE
SEPARATION PROCESSES
AROMATICS
CARBOXYLIC ACIDS
DATA
DYES
ELEMENTS
EMISSION SPECTROSCOPY
HYDROXY ACIDS
HYDROXY COMPOUNDS
INFORMATION
KINETICS
METALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
PHENOLS
POLYPHENOLS
REACTION KINETICS
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENTS
400105* - Separation Procedures
400104 - Spectral Procedures- (-1987)