Determination of traces of chloride ion in water by ion-exchange chromatography
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Rapid determination of urinary total porphyrins by ion exchange chromatography.
Total urinary porphyrins were eluted from a commercially available anion exchange Chromatographie column with hydrochloric acid and determined spectrophotometrically. For 1 ml samples the optimum concentration range for measurement was found to lie between 0.1 and 1.5 mg of total porphyrin/1 urine. Assay of a single sample takes 12 min. The specificity (measurement at three wave lengths), sensi...
متن کاملPurification of bradykinin by ion-exchange chromatography.
Shirai, Y. & Ohkubo, T. (1954a). J. Biochem., Tokyo, 41, 337. Shirai, Y. & Ohkubo, T. (1954b). J. Biochem., Tokyo, 41, 341. Storey, I. D. E. (1950). Biochem. J. 47, 212. Storey, I. D. E. & Dutton, G. J. (1955). Biochem. J. 59,279. Storey, I. D. E. & Dutton, G. J. (1956). Proc. 3rd Int. Congr. Biochem., Brussel8, 1955, p. 162. Strominger, J. L., Kalckar, H. M., Axelrod, J. & Maxwell, E. S. (1954...
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introduction : albumin, one of the most important plasma proteins, has a difficult process of synthesis and production. we compared two different methods for albumin purification: carboxymethyl cellulose (cm cellulose) resin exchange and diethylaminoethyl cellulose (deae cellulose) resin exchange in order to determine which resin could be more beneficial. materials and methods : two ion exchang...
متن کاملIon Exchange Chromatography
The separation and purification of various elements by ion exchange chromatography takes advantage of the variation of the electrostatic bond energies of ions in solution. Thus, the two main controlling factors in ion exchange chromatography are the ionic charge (z) and the ionic radius (r). These two are combined in the ionic potential – z/r – that can be used to compare relative electrostatic...
متن کاملDetermination of Hexavalent Chromium in Drinking Water Using Ion Chromatography
INTRODUCTION Hexavalent chromium, Cr(VI), is the most toxic form of the metal chromium, a primary drinking water contaminant in the U.S. Dissolved hexavalent chromium can be determined as chromate (CrO 4 ) by ion chromatography in drinking water, groundwater, and industrial wastewater effluents as described in U.S. EPA Method 218.6 and Dionex Technical Note 26. Dionex Technical Note 26 uses a 2...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1975
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.24.531