Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For halogen or halogen containing compound
Reexamination Certificate
2006-04-25
2006-04-25
Noguerola, Alex (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For halogen or halogen containing compound
C204S419000
Reexamination Certificate
active
07033483
ABSTRACT:
A fluoride-sensitive electrode having a tubular electrode shaft, a lanthanum fluoride crystal, which closes the end of the electrode shaft, an internal electrolyte sealed between the lanthanum fluoride crystal and a closure in the electrode shaft, and a contact wire which dips into the internal electrolyte, wherein the internal electrolyte has a pH of ≧9.0 and a fluoride concentration of ≧0.1 M. The invention also includes the method of using the electrode to determine fluoride ion concentration.
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Pinkowski Alexander
Wittkampf Michael
Dunn Michael L.
Noguerola Alex
Prominent Dosiertechnik GmbH
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