Download or read book Evaluation of the LASL Automated Spectrophotometer for Uranium Determination at Submilligram Levels written by R. M. Hollen and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LASL automated spectrophotometer, designed for determination of 1 to 14 mg of uranium and 0.5 to 14 mg of plutonium, has been evaluated for determination of lower levels of uranium to 0.12 mg. The essentially linear response of absorbance is maintained and the standard deviation for a single measurement is constant at about 0.013 mg of uranium, corresponding to a maximum uncertainty of about 10 percent at the 0.12-mg limit. The instrument was applied to the analysis of a series of low-level-concentration, 0.07- to 0.8-mg/ml uranium samples. The results were not statistically different from those obtained by a manual spectrophotometric method.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 1780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of LASL Research written by Los Alamos Scientific Laboratory and published by . This book was released on 1972 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of Los Alamos Research written by Los Alamos National Laboratory and published by . This book was released on 1983 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Spectrophotometer for Plutonium and Uranium Determination written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The automated spectrophotometer described is the first in a planned series of automated instruments for determining plutonium and uranium in nuclear fuel cycle materials. It has a throughput rate of 5 min per sample and uses a highly specific method of analysis for these elements. The range of plutonium and uranium measured is 0.5 to 14 mg and 1 to 14 mg, respectively, in 0.5 ml or less of solution with an option to pre-evaporate larger volumes. The precision of the measurements is about 0.02 mg standard deviation over the range corresponding to about 2 rel percent at the 1-mg level and 0.2 rel percent at the 10-mg level. The method of analysis involves the extraction of tetrapropylammonium plutonyl and uranyl trinitrate complexes into 2-nitropropane and the measurement of the optical absorbances in the organic phase at unique peak wavelengths. Various aspects of the chemistry associated with the method are presented. The automated spectrophotometer features a turntable that rotates as many as 24 samples in tubes to a series of stations for the sequential chemical operations of reagent addition and phase mixing to effect extraction, and then to a station for the absorbance measurement. With this system, the complications of sample transfers and flow-through cells are avoided. The absorbance measurement system features highly stable interference filters and a microcomputer that controls the timing sequence and operation of the system components. Output is a paper tape printout of three numbers: a four-digit number proportional to the quantity of plutonium or uranium, a two-digit number that designates the position of the tube in the turntable, and a one-digit number that designates whether plutonium or uranium was determined. Details of the mechanical and electrical components of the instrument and of the hardware and software aspects of the computerized control system are provided.
Download or read book Handbook of Nuclear Safeguards Measurement Methods written by Donald R. Rogers and published by . This book was released on 1983 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Spectrophotometer for Plutonium and Uranium Determination written by D. D. Jackson and published by . This book was released on 1976 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1978 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Automatic inline Spectrophotometer for the Determination of Uranium in the Presence of Aluminum Nitrate Nitric Acid and Highly Radioactive Fission Products written by Robert Birney Kimball and published by . This book was released on 1958 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Chemistry in Nuclear Fuel Reprocessing written by William S. Lyon and published by . This book was released on 1978 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1978-06 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Uranium Supply to 2050 written by International Atomic Energy Agency and published by . This book was released on 2001 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the first International Atomic Energy Agency projection of uranium supply and demand to 2050 and provides an understanding of how some alternative uranium supply scenarios could evolve over the period. The analysis is based on the current knowledge of uranium resources and production facilities, and takes into account the premise that they can operate with minimal environmental impact and employ the best practices in planning, operations, decommissioning and closure.
Download or read book Titrimetric Determination of Zirconium written by M. O. Fulda and published by . This book was released on 1955 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Aquatic Toxicology written by Mikko Nikinmaa and published by Elsevier. This book was released on 2014-07-01 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Aquatic Toxicology is an introductory reference for all aspects of toxicology pertaining to aquatic environments. As water sources diminish, the need to understand the effects that contaminants may have on aquatic organisms and ecosystems increases in importance. This book will provide you with a solid understanding of aquatic toxicology, its past, its cutting-edge present and its likely future. An Introduction to Aquatic Toxicology will introduce you to the global issue of aquatic contamination, detailing the major sources of contamination, from where they originate, and their effects on aquatic organisms and their environment. State-of-the-art toxicological topics covered include nanotoxicology, toxicogenomics, bioinformatics, transcriptomics, metabolomics, as well as water management and the toxicological effects of major environmental issues such as algal blooms, climate change and ocean acidification. This book is intended for anyone who wants to know more about the impact of toxicants on aquatic organisms and ecosystems, or to keep up to date with recent and future developments in the field. Provides with the latest perspectives on the impacts of toxicants on aquatic environments, such as nanotoxicology, toxicogenomics, ocean acidification and eutrophication Offers a complete overview, beginning with the origins of aquatic toxicology and concluding with potential future challenges Includes guidance on testing methods and a glossary of aquatic toxicology terms
Download or read book British Pharmacopoeia 2007 written by British Pharmacopoeia Commission and published by Bernan Assoc. This book was released on 2006 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hard copy edition package contains a boxed five volume set with a separate Veterinary volume, a CD-ROM and access to a comprehensible, regularly updated website. Both the CD-ROM and online formats have networkable capacity. In more detail this set comprises: i) four volumes detailing all current UK pharmacopoeial standards for medicines for human use; ii) a companion volume providing standards for substances, preparations and immunological products used in veterinary medicine; and iii) a fully searchable CD-ROM which contains the contents of these volumes in electronic form together with a user manual, as well as the British Approved Names 2002 and supplements; iv) British pharmacopoeia chemical reference substances catalogue 2006-2007. The Pharmacopoeia is published on the recommendation of the Medicines Commission in accordance with the Medicines Act 1968. This edition is effective from 1 January 2007 and it incorporates the requirements of the 5th edition of the European Pharmacopoeia 2004 and its supplements. The British Pharmacopoeia (BP) 2007 is the authoritative, current collection of standards for UK medicinal substances and the official source of all UK quality standards. It is an essential reference for anyone involved in pharmaceutical Research & Development, manufacturing and testing, and plays a vital role in ensuring that all medicinal substances on the UK market meet standards of safety, quality and efficacy. The key features of this new edition are: extensive revisions including 30 new BP texts; new supplementary chapters containing general guidance on unlicensed medicines and method validation; the first BP monograph for traditional Chinese medicines; all European Pharmacopoeia 5th edition material up to and including Supplement 5.5 integrated into the text of BP 2007; value-for-money networking with full technical support from the publishers; CD-ROM and website deliver the complete text of the British Pharmacopoeia, British Approved Names and European Pharmacopoeia standards directly to your PC: www.pharmacopoeia.co.uk is regularly updated and includes information on monograph development and contact points.
Download or read book Coastal Sedimentary Environments written by R.A. Jr. Davis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: The zone where land and sea meet is composed of a variety of complex environments. The coastal areas of the world contain a large percentage of its population and are therefore of extreme economic importance. Industrial, residential, and recreational developments, as well as large urban complexes, occupy much of the coastal margin of most highly developed countries. Undoubtedly future expansion in many undeveloped maritime countries will also be concentrated on coastal areas. Accompanying our occupation of coasts in this age of technology is a dependence on coastal environments for transportation, food, water, defense, and recreation. In order to utilize the coastal zone to its capacity, and yet not plunder its resources, we must have extensive knowledge of the complex environments contained along the coasts. The many environments within the coastal zone include bays, estuaries, deltas, marshes, dunes, and beaches. A tremendously broad range of conditions is represented by these environments. Salinity may range from essentially fresh water in estuaries, such as along the east coast of the United States, to extreme hypersaline lagoons, such as Laguna Madre in Texas. Coastal environments may be in excess of a hundred meters deep (fjords) or may extend several meters above sea level in the form of dunes. Some coastal environments are well protected and are not subjected to high physical energy except for occasional storms, whereas beaches and tidal inlets are continuously modified by waves and currents.
