نتایج جستجو برای: kjeldahl method
تعداد نتایج: 1630451 فیلتر نتایج به سال:
We describe an apparatus modified for the chemiluminescent estimation of nitrogen in biological and clinical samples. Analytical characteristics have been assessed and results compared with those by the traditional Kjeldahl method. The chemiluminescence method, much faster and more sensitive than the traditional method, is at least as accurate, precise, and reproducible. Costs are low, and the ...
DURING the course of experimental work with various methods for the determination of total protein in blood-plasma and serum, an endeavour was made to weigh the protein resulting from precipitation with trichloroacetic acid followed by washing with alcohol and ether. The results, compared with the direct gravimetric method of Knipping and Kowitz [1924] as modified by Starlinger and Hartl [1925]...
BACKGROUND Assay of total serum protein by the biuret method calibrated with albumin standards according to the reference method provides results with a positive bias approximately 3%-5% exceeding the total error of 3.4% allowable for total protein in serum analysis made by analysers using two-part reagents and short-term procedures. METHODS We used two types of two-part biuret reagents utili...
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