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Fklmh e.V.   ›   FKLMH-Bistro   ›   Off-Topic   ›   PH-Elektroden

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PH-Elektroden
AdministratorSaftschubse
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Registriert seit: Jun 2000
Beiträge: 1.058

#5
21.03.2007, 15:49
Hallo Andrea,

da fragst Du die Richtige.... hier habe ich das folgende gefunden:

Zitat: Die Steilheit (temperaturabhängig) ist ein Maß, wie empfindlich eine Elektrode auf pH-Änderungen reagiert. Die Steilheit S in mV/pH von z.B. einer pH-Elektrode ist das Verhältnis von Spannungsdifferenz bei zwei verschiedenen pH-Werten zur Differenz dieser pH-Werte.

Bei 25°C liegt der theoretisch erreichbare Wert (die Nernstspannung) bei 59,16mV (100%). Zu niedrige Werte deuten auf ein Nachlassen der Elektrodenempfindlichkeit hin und können dann am pH-Messgerät nicht mehr eingestellt werden.


Hilft Dir das??
  Zitieren


Nachrichten in diesem Thema
PH-Elektroden - von Andrea - 21.03.2007, 12:14
[Kein Betreff] - von Saftschubse - 21.03.2007, 13:56
[Kein Betreff] - von Anton - 21.03.2007, 14:17
[Kein Betreff] - von Andrea - 21.03.2007, 14:18
[Kein Betreff] - von Saftschubse - 21.03.2007, 15:49
[Kein Betreff] - von Andrea - 21.03.2007, 16:50

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