Replacement Electrode disc_1619670
Representative image only

Replacement Electrode disc

$1,530.10

The price is inclusive of GST
Overview

The S1 electrode was designed in the early 1970’s during a collaborative project between Prof. David Walker, Prof. Tom Delieu and Hansatech Instruments. Since the first S1 oxygen electrode disc went on sale in 1974, the design and manufacturing process has remained largely unchanged in nearly 40 years – a true testament to the popularity, quality and reliability of the sensor.

A range of complementary instruments have been continuously developed over the years in order to meet the needs of emerging trends in the scientific world. Modern oxygen measurement systems incorporate the S1 electrode to provide sensitive and reliable tools for a vast range of applications from the demonstration of oxygen evolution from photosynthetic organisms to the analysis of mitochondrial respiration rates.

When prepared and fitted into an electrode chamber, the dome of the electrode disc forms the floor of the electrode chamber reaction vessel providing a sensitive and rapid response to small changes in oxygen tension within the sample.

The electrode disc comprises a central platinum cathode and a concentric silver anode. Preparation of the electrode includes the addition of electrolyte and the application of a thin oxygen permeable P.T.F.E. membrane to the electrode dome.

Once prepared and positioned in the electrode chamber, the disc is connected to an electrode control unit which applies a small polarising voltage between the platinum and silver electrodes. In the presence of oxygen, a small current is generated proportional to oxygen activity in the sample.

With modifications and in conjunction with accessory equipment, the S1 oxygen electrode disc may be used to measure other gasses such as hydrogen and nitric oxide.

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