Selectivity of Ferrum 430™ towards Iron (III) over Iron (II)

Ferrum 430™ is supplied dry in a prepacked vial for easy reconstitution. Visit our Online Store for current pricing.

Excitation-Emission matrices recorded for Ferrum 430 dissolved in 10:90 water:ethanol mixture (by volume) at room temperature. The concentration of dye is (3.65 +/- 0.41) µM. The upper panel shows data recorded before FeCl₃ was added and the lower panel after FeCl₃ was added. 

Ferrum 430™ in pre-loaded cuvettes, simply add 3 ml of your sample and measure.  Visit our Online Store for current pricing.

Contour plots recorded for Ursa 520-R™ at 11.0 μM concentration without (panel A) and with (panel B) 5 equivalents Fe³⁺.

Time-dependent absorption spectra (0-60 min) recorded for Ursa 520-R™ at 3.0 μM concentration mixed with 5 equivalents of FeCl₃. The arrows indicate the spectral trend with time. Panel A and B shows the same data but on different scales.

Ratiometric curves constructed for Ursa 520-R™, with different concentrations of FeCl₃ as indicated, by dividing the absorbance value observed at 253 nm by that observed at 370 nm.

Photograph illustrating the selectivity between Fe³⁺ and Fe²⁺ions offered by Ferrum 560™. Cuvettes containg equal concentrations of Fe²⁺ or Fe³⁺ ions dissolved in water and mixed with Ferrum 560™ are placed on an UV light box and illuminated from below at 365 nm.

Ferrum 560™ is supplied dry in a prepacked vial for easy reconstitution. Visit our Online Store for current pricing. A short video shows our reconstitution procedure.

Ferrum 560™ is available in prepacked cuvettes. See on-line store for more information.