Combined titration and pH electrode for the preparation of liquid samples in particular for NMR spectroscopy
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United States of America Patent
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Issued Date -
Jun 21, 2007
app pub date -
Dec 13, 2006
filing date -
Dec 20, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrode rod (1;21) for a pH meter, comprising a measuring end (2; 22) for immersion into a liquid test sample (31), wherein the measuring end (2; 22) has a pH measuring element, and wherein electrical feed lines (5) in the electrode rod (1;21) extend towards the pH measuring element, is characterized in that at least one capillary (8, 9, 10; 23) for feeding a liquid into the test sample (31) extends in the electrode rod (1; 21), and the at least one capillary (8, 9, 10; 23) has an outlet opening (11, 12, 13; 24) in the area of the measuring end (2; 22). The inventive electrode rod facilitates and accelerates preparation of liquid test samples, in particular, adjustment of a pH value for small amounts of test samples or narrow sample containers.
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