| 摘要 |
AN ion selective electrode capable of production in miniaturized form suitable for in vivo monitoring is produced by coating a metal-metal salt half cell (48) with a layer (40) of hydrophilic material containing electrolyte with an overlayer (42) of an ion selective membrane. The coatings may be applied by a dipping and drying process. Stability is enhanced by addition of silver black (46) and platinum black (44) to the half cell and those materials may be added as layers in a similar dip and dry process. A companion reference electrode half cell is made of the same materials that are used in making the "half cell" portion of the selective electrode, except that the reference half cell is coated with a protein layer. Special packaging and a special procedure facilitate calibration. |
