|Author||Holcomb, H. P. ♦ Yoe, J. H.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||CHEMISTRY ♦ BENZOYL RADICALS ♦ COLOR ♦ DYES ♦ ETHERS ♦ IONS ♦ MEASURED VALUES ♦ METHANE ♦ PHOTOMETRY ♦ QUANTITATIVE ANALYSIS ♦ SENSITIVITY ♦ SEPARATION PROCESSES ♦ SOLVENT EXTRACTION ♦ SPECTRA ♦ URANIUM ♦ URANIUM ORES ♦ URANYL COMPOUNDS ♦ URANYL NITRATES|
|Abstract||BS>A more comprehensive study of the Fritz and JohnsonRichard arsenazo methed (4) for the spectrophotometric determination of uranium is presented. Arsenazo instantaneously forms a stable blue complex with uranyl ions with a maximum absorbance at 590 m mu . The mole ratio of uranyl ion to compound is 1 to 1. The color reaction conforms to Beer's law and has a sensitivity of 1 part of uranium in 30,000,000 parts of solution. Tolerances to diverse ions, effect of temperature, and the separation of uranium from interfering ions by ether extraction of uranyl nitrate have been investigated. The accuracy of the new method compares well with the dibenzoylmethane method. The sensitivity of arsenazo is about 50% higher than that of dibenzoylmethane. The method has been applied to the analysis of synthetic samples containing uranium and various interfering ions, as well as to a number of uranium ores. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Univ. of Virginia, Charlottesville|
|Organization||Univ. of Virginia, Charlottesville|
Ministry of Human Resource Development (MHRD) under its National Mission on Education through Information and Communication Technology (NMEICT) has initiated the National Digital Library of India (NDLI) project to develop a framework of virtual repository of learning resources with a single-window search facility. Filtered and federated searching is employed to facilitate focused searching so that learners can find out the right resource with least effort and in minimum time. NDLI is designed to hold content of any language and provides interface support for leading vernacular languages, (currently Hindi, Bengali and several other languages are available). It is designed to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is being developed to help students to prepare for entrance and competitive examinations, to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is being developed at Indian Institute of Technology Kharagpur.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Human Resource Development (MHRD), through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
For any issue or feedback, please write to firstname.lastname@example.org