| 摘要 |
<p>A method of confining an electroactive substance within an electrochemical cell in the form of a receptacle, said method that includes (a) providing an electrochemical cell in the form of a receptacle, the receptacle having a first open part to allow entry of a sample into the receptacle, and a second open part to allow escape of air displaced by the entering sample, the electrochemical cell having a working electrode and a counter electrode; (b) providing an electroactive substance, which substance is contained within the receptacle; (c) providing a permeable or semi-permeable membrane, including one or more layers, covering the first open part of the receptacle; and (d) inserting the sample into the receptacle through the membrane, such that (1) the electroactive substance and (2) the sample, are in contact with each other and with said working electrode; wherein the electroactive substance is confined within the receptacle during step (d). Preferably, the method additionally involves electrochemically testing a sample, by applying a voltage across the cell and measuring the resulting electrochemical response.</p> |
