منابع مشابه
Improved method of total antioxidant assay.
Commercially available analytical kits for the estimation of total antioxidant status are expensive and time-consuming. Most of the commercially available kits for total antioxidants estimation are based on the principle of suppression of ABTS radical cation formation by antioxidant in the serum sample. The method requires stringent assay conditions, like exact incubation time and the temperatu...
متن کاملImproved semiautomated method for assay of phosphorus in serum phospholipids.
A dependable automated method for the analysis of phospholipids would be highly desirable, because manual proceduresfortheir assay are long and tedious. One such procedure has been proposed by Whitley and Album foruse with an AutoAnalyzer (Technicon Instruments Corp., Tarrytown, N.Y. 10591). The chemical basis of this system is sound, and has been des#{243}ribed in detail (1). However, the meth...
متن کاملAn improved HPLC method for determination of colocynthin in colocynth
Background and objectives: Colocynthin is the major active secondary metabolite of colocynth, Citrullus colocynthis (L.) Schrad, which has been used in traditional and ethno medicine of many countries. It could be considered as an active marker for quality control of colocynth and its herbal products. Analysis and standardization of colocynth and its herbal preparations are a critical...
متن کاملAMPEROMETRIC MICROBIOSENSOR FOR THE DETERMINATION OF CHOLINE
The construction and performance of an amperometric microbiosensor for the determination of choline chloride by immobilizing choline oxidase on a cellulose acetate membrane are described. The procedure of choline determination involved the electrochemical detection of enzymatically generated hydrogen peroxide. This microsensor has a linear response between 0.038-0.1 mM choline chloride. The...
متن کاملImproved radioenzymatic assay for spectinomycin.
The sensitivity and reproducibility of the radioenzymatic adenylylating assay for spectinomycin were improved by modifications of the assay procedure and by partial purification of the enzyme. The presence of Bacillus subtilis ribosomes or S-150 fraction in the enzymatic reaction mixture interfered with the ability to measure spectinomycin by this method.
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1976
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.31.3.446-447.1976