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Photometric EDTA Titration of Zinc Sulfate According to Ph. Eur. and USP

21 Mar 2014

This Application Note details the photometric determination of zinc sulfate using the Optrode (610 nm). Complexometric titration of zinc requires an EDTA titrant and Eriochrome Black T as indicator. The method fully complies with Ph. Eur. and USP.

Optrode Sensor for Titration

Metrohm AG

Sensor 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.

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Photometric EDTA Titration of Zinc Sulfate According to Ph. Eur. and USP