| 释义 |
kjel·dahl
\ˈkelˌdäl\ adjective
Usage: usually capitalized
Etymology: after Johan G. C. T. Kjeldahl died 1900 Dan. chemist
: of, relating to, or being a method for determining the amount of nitrogen (as in an organic substance) by digesting a sample with boiling concentrated sulfuric acid and other reagents, adding an excess of alkali, distilling, collecting the ammonia expelled, and determining the ammonia by titration
< kjeldahl analysis >
< kjeldahl apparatus > |