Cobalt Analysis by Automated Photometric Titration
Cobalt Analysis by Automated Photometric Titration
18 Dec 2015Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. Cobalt can be analyzed in aqueous solutions by direct titration with EDTA at pH 9. The indicator is murexide, and the equivalence point is determined with the Optrode at a wavelength of 574 nm.
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Optrode Sensor for Titration
Metrohm AGSensor for titration with photometric endpoint recognition. Eight wave lengths: 470, 502, 520, 574, 590, 610, 640 and 660 nm 100% solvent-resistant due to glass shaft Compact and space-saving Very easy to clean Easy to change the wave lengths Both new and existing titration systems can be furnished with the optrode. The power supply is provided directly through the USB interface of a Metrohm instrument (Titrino plus, Ti-Touch, Titrando, USB sample changer). With older models without a USB interface, the power supply can also be provided by means of an optional USB power supply unit.