Kjeldahl

The protein content was determined by precipitating with a solution of CaSO4 (6 percent) and NaOH (1.25 percent); the precipitate was analyzed by the Kjeldahl method.

12 Cassava Processing in Africa 1992

The dried samples were analysed for their crude protein content by the micro-Kjeldahl method (37).

Chapter 7 1983

The remaining part of the operation is as in the ordinary Kjeldahl process.

Nitro-Explosives: A Practical Treatise

~ An approximate determination of the albuminous matters may be made by precipitating with basic lead acetate as already described, and determining the nitrogen by the Kjeldahl method; the nitrogen multiplied by 6.25 gives the amount of albuminous matter in the precipitate.

Nitro-Explosives: A Practical Treatise

Finally, 0.7 grm. of mercury is added, and the process continued in the usual way, according to Kjeldahl; that is, the liquid is distilled until all the ammonia has passed over, and is absorbed in the standard acid.

Nitro-Explosives: A Practical Treatise

In those cases in which the substitute is made by admixture with gelatin or liquid glue the quantity of other organic matter obtained can be checked by a Kjeldahl determination of the total nitrogen.

Scientific American Supplement, No. 821, September 26, 1891 Various

Page view page image: nitrogen (Kjeldahl), uric acid (Hopkins-Folin), ammonia (Folin, and formaldehyde methods), chlorids, and total acidity of urine (Folin).

University of Virginia Record 1916

Determine nitrogen in 3 grams of the sample by the Kjeldahl or Gunning method.

All About Coffee 1909

Traditionally, the Kjeldahl method is used to determine protein content, but the Association of Official Analytical Chemists (AOAC) has added the Dumas combustion technique as a recognized method (method 992.15) for such analyses.

unknown title 2009

Traditionally, the Kjeldahl method is used to determine protein content, but the Association of Official Analytical Chemists (AOAC) has added the Dumas combustion technique as a recognized method (method 992.15) for such analyses.

unknown title 2009