发明名称 |
FORFARANDE FOR KONCENTRATIONSBESTEMNING AV SOCKER I NERVARO AV STORANDE FREMMANDE SUBSTANSER SAMT ELEKTROKATALYTISK SOCKERSENSOR FOR UTFORANDE AV FORFARANDET |
摘要 |
A method for determining the concentration of sugar in the presence of interfering foreign substances, particularly for determining glucose in a body fluid, by means of an electrocatalytic sugar sensor which has a measuring electrode in which the measuring electrode is alternatingly set potentiostatically to a reactivation and a measuring potential and the current flowing during the measuring period is evaluated as the measurement signal. To prevent foreign substances from exerting an interfering influence and thereby permit a sensitive sugar determination which is reliable over an extended period of time, a hydrophilic diaphragm is arranged in front of the measuring electrode to impede the resupply of the interfering foreign substances to the measuring electrode so that a diffusion limit current adjusts itself during the reactivation phase in the oxidation of the foreign substances; and the current is evaluated with a time delay relative to the start of the measuring period. |
申请公布号 |
SE439378(B) |
申请公布日期 |
1985.06.10 |
申请号 |
SE19790003393 |
申请日期 |
1979.04.18 |
申请人 |
SIEMENS AG |
发明人 |
G * RICHTER;G * LUFT;U * GEBHARDT |
分类号 |
G01N27/30;G01N27/49;(IPC1-7):G01N27/46 |
主分类号 |
G01N27/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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