| 摘要 |
1281116 Electrochemical analysis RADIOMETER AS 23 March 1970 [28 March 1969] 13832/70 Heading G1N The invention relates particularly to Ag/AgCl half cells with a KCL electrolyte and comprises having an excess of crystals of both salts to maintain a SATURATED SOLUTION of BOTH SALTS at any operating temperature. More generally e.g. silver halides, silver sulphide biomuth fluoride, or copper sulphide may be used with alkali metal salts of e. g. lithium, sodium, potassium, rubidium or caesium having the same anion (i.e. halid, fluoride or sulphide) and a polar solvent, generally water, but may be alcohols, or water mixtures with ketones, aldehydes or aliphatic or aromatic hydrocarbons. The excess crystals may be in the form of a paste thickened with a gas or may be compacted with metal particles Figs. 4, 5 (not shown). Fig. 1 (not shown) illustrates a half cell with a porous plug and excess crystals; Figs. 2 and 3, respectively (not shown) indicates the use of this half cell as a reference electrode in a compound salt bridge cell with a second saturated electrolyte and a glass electrode, while Fig. 6 (not shown) illustrates a "compacted" reference electrode in a glass electrode. |
