シルバー氏型微小酸素電極の作り方

概要

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The ideal oxygen electrode should be sensitive only to oxygen, should have a short response time, a low oxygen consumption, and should show a linear relationship between oxygen tension and current output. Such an electrode has been polarographically designed and produced by I. A. Silver (1965). The present paper describes the construction of electrode which is based on the Silver's method and on some techniques improved by the writer: the technique are (1) to make the absolute point of the tip on a fine platinum wire by means of electro-polishing; (2) to shield the platinum wire, except the absolute tip, with glass by means of a microforge; (3) to coat the exposed tip with suitable collodion membrane; (4) to construct the micro-oxygen electrode. The electrode assembly of platinum cathod, chloride silver anode, and outer glass tube used as a housing which is electrically insulated with a suitable resin (DPX) is shown. If the insulating membrane maintains a suitable thinness, oxygen can permeate through the membrane. In addition the polarogram of oxygen obtained by such an electrode is shown.
社団法人日本動物学会の論文
1967-04-15