Process and catalyst for determining nitrogen in a sample according to the Kjeldahl principle
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United States of America Patent
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Oct 21, 1980
Grant Date -
N/A
app pub date -
Oct 6, 1978
filing date -
Oct 7, 1977
priority date (Note) -
Expired
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Abstract
An antimonate, such as potassium antimonate, is used as the destruction catalyst in nitrogen determinations according to the Kjeldahl principle. Preferred catalyst comprises potassium antimonate together with potassium sulfate (for increasing the boiling point of the destruction mixture) and minor amounts of zinc sulfate and cupric sulfate (as co-catalysts).
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