Results 271 to 280 of about 1,115,302 (317)
Some of the next articles are maybe not open access.
A study on protein nitrogen and total nitrogen values of various food extracts
Journal of Allergy, 1954I N ACCORDANCE with the standardization procedure proposed by Cooke and Stulll> 2 for pollen extracts, all pollen and inhalant extracts prepared in this laboratory are standardized on their proetin nitrogen basis.” In the case of food extracts, it was formerly believed that protein represented as a rule at least 90 per cent of the total nitrogen value ...
N P, AUMAN, A E, MENZEL
openaire +2 more sources
Prediction of total urinary nitrogen from urea nitrogen for burned patients
Journal of the American Dietetic Association, 1985Although many of the current nutrition assessment techniques are inappropriate for burned patients, we have found nitrogen balance to be a helpful measure of the effectiveness of nutrition therapy if it is used in conjunction with other measures of nutritional status.
S J, Bell +3 more
openaire +2 more sources
A total body nitrogen facility for paediatric use
Physics in Medicine and Biology, 1991The design, calibration and evaluation of a facility for in vivo prompt gamma neutron capture analysis of total body nitrogen in children is described. The patient is scanned in both supine and prone positions, across a vertically collimated beam from a 1 GBq 252Cf fission source.
L A, Baur +4 more
openaire +2 more sources
Hydrogen background in total body nitrogen estimations
Physics in Medicine and Biology, 1995Total body nitrogen (TBN) is measured by in vivo prompt gamma neutron capture analysis. Usually the background under the nitrogen peak is subtracted before calculating TBN from the ratio of nitrogen counts (at 10.8 MeV) to hydrogen counts (at 2.2 MeV). The hydrogen acts as an internal standard. The background under the hydrogen peak is usually ignored.
I R, Humphries +3 more
openaire +2 more sources
An ultramicromethod of determining the total nitrogen
Bulletin of Experimental Biology and Medicine, 1959The author describes the ultramicromethod in total nitrogen determination which makes it possible to analyze histological tissue sections (20 to 30 μ thick and with the area of 1–2 mm2) to within the accuracy limits of ±5–6% with the total nitrogen content in them comprising 0.5–10±5–6%.
openaire +1 more source
Total Carbon and Nitrogen Abundances in Lunar Samples
Science, 1970Total carbon and nitrogen abundances were determined by using combustion-gas chromatographic techniques. Weighted mean analyses for bulk fines were 225 and 140 ppm total carbon and 150 and 100 ppm total nitrogen. Total carbon in fine breccia was 230 ppm; in coarse breccia, 100 ppm; in fine-grained rock, 70 ppm; and in medium-grained rock, 64 ppm.
C B, Moore +3 more
openaire +2 more sources
A METHOD FOR THE MEASUREMENT OF TOTAL NITROGEN IN MICROGRAM AMOUNTS
Australian Journal of Experimental Biology and Medical Science, 1961SUMMARYA method is described for the measurement of total nitrogen in the range 0·5–25 μg. It can be employed routinely, and is readily adaptable to different requirements. The method involves a modified Kjeldahl digestion, and the ammonia is distilled in Conway's microdiffusion vessels. It is accurate and simple in operation.
openaire +2 more sources
The Determination of Total Nitrogen Including Nitric Nitrogen.
Journal of Industrial & Engineering Chemistry, 1919B. S. Davisson, J. T. Parsons
openaire +1 more source