Automated Photometric Determination of Palladium Using the Optrode
Automated Photometric Determination of Palladium Using the Optrode
3 Dec 2015Palladium is a chemical element with symbol Pd and atomic number 46. Over half of the supply of palladium and its congener platinum goes into catalytic converters, which convert up to 90% of harmful gases from auto exhaust into less-harmful substances. Palladium is also used in applications such as electronics, medicine, and jewelry. Palladium is determined at pH 4 to 5 by back-titration with zinc sulfate. To visualize the endpoint xylenol orange is used as indicator and the equivalence point is detected with the Optrode at a wavelength of 610 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.