منابع مشابه
Photometric Microdetermination of Human Gamma
The main purpose in performing the detailed experimental studies in Part I is the application of the photometric method to the determination of the gamma globulin content of human sera. These experimental studies show that protein fractions such as albumin or alpha globulins, whose electrophoretic mobilities are far removed from gamma globulin, cause little interference with its determination. ...
متن کاملMicrodetermination of Proline in Serum.
An accurate method for determination of proline in serum has been adapted to a micro scale, with good results. Acidic ethanol is used as a serum deproteinizing agent prior to development of color with ninhydrin and its extraction into benzene. The range of accuracy is ± 3.0% with as little as 0.2 ml. serum. The microdetermination of this amino acid facilitates study of the intermediary metaboli...
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A FI Zr-based catalyst of bis[N-(3,5-dicumylsalicylidene)-2′,6′diisopropylanilinato]zirconium(IV) dichloride was prepared and used for polymerization of ethylene. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature up to 35 oC were favorable for catalyst/MAO to raise the catalytic activity as...
متن کاملSimple microdetermination of uric acid.
In 1947 Kalckar introduced a comprehensive differential spectrophotometric system for the analysis of purines, including uric acid (1). Praetorius and his associate Poulsen employed this procedure and have published detailed directions for a practical uric acid method (2, 3). During the past 4 years, over 2000 routine uric acid determinations on blood and urine have been performed in this labor...
متن کاملThe Microdetermination of Biological Copper with Oxalyldihydrazide.
Methods are described for the determination of microgram quantities of biological copper in aqueous medium as the intensely coloured oxalyldihydrazide-acetaldehyde complex (molar extinction coefficient 23,000 to 23,500). The methods are applicable on a routine basis to any biological material, in particular to serum, urine, or tissues, such as liver, brain, or kidney. In the case of urine a sim...
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ژورنال
عنوان ژورنال: Journal of AOAC INTERNATIONAL
سال: 1960
ISSN: 0095-9111
DOI: 10.1093/jaoac/43.3.693