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[ E-book ] – Handbook of Residue Analytical Methods for Agrochemicals – Philip W Lee
Feb 12th
The agrochemical industry is, globally, one of the most heavily regulated industries today. Extensive product chemistry, environmental fate, residue chemistry, ecotoxicology, and mammalian toxicology data are required to support the registration and reregistration of all crop protection products. This information is used not only to conduct human dietary and worker exposure risk assessments but also to determine the potential impact of the agrochemicals and their degradation products/metabolites on the environment and sensitive ecosystems. The quality of the residue data, including the reliability and sensitivities of the analytical methods and the validity of the collected biological/environmental samples, is critical to the acceptability and validity of the risk characterization/assessment. Differences in testing guidelines between the various regulatory authorities and the lack of standardization in test method specifications further complicate the interpretation and broad application of the exposure data. More >
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Loading ...[ E-book ] – A Comprehensive Treatise On Inorganic And Theoretical Chemistry Vol 2 – Mellor
Dec 9th
THE four elements fluorine, chlorine bromine, and iodine together form a remarkable family, and they are grouped under the name halogens or salt-formers–k, sea- salt ; yE,d(o, I produce. J.S.C. Schweigger used this term in 1811, and it was also employed by J. J. Berz.elius 1 for the non-oxygenated negative radicles–simple or compound–which combine with the metals to form salts. J. J. Berzelius was inclined to restrict the term more particularly to the simple radicles F, C1, Br, I, and the compound radicle CI’. J.J. Berzelius’ term halogen has been retained for the four elements, and cyanogen dropped from the list. The binary salts–fluorides, chlorides, bromides, and iodides–are called halides, halide sahs, or haloid salts. This term was also employed by J. J. Berzelius for the salts formed by the union of the metals with fluorine, chlorine, bromine, iodine, and cyanogen; as before, cyanogen has again been dropped from the list. More >
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Loading ...[ E-book ] – Thermal Analysis Fundamentals and Applications to Polymer Science Second Edition
Nov 28th
T. Hatakeyama
Otsuma Women’s University, Faculty of Home Economics, Tokyo, Japan
F.X. Quinn
L’Oréal Recherche Avancée, Aulnay-sous-Bois, France
This text is designed to acquaint and orientate newcomers with thermal analysis by providing a concise introduction to the basic principles of instrument operation, advice on sample preparation and optimization of operating conditions and a guide to interpreting results. The text deals with DSC and Dthermal analysis in Chapters 2 and 3. TG is described in Chapter 4. In Chapter 5 the application of these thermal analysis techniques to polymer science is presented. Other thermal analysis techniques are briefly described for completeness in Chapter 6. The Appendices include a glossary of thermal analysis terms, a survey of standard reference materials and thermal analysis conversion tables.
Although primarily pitched at newcomers, this book is also intended as a convenient reference guide for more experienced users and to provide a source of useful thermal analysis information for professional thermal analysts. More >
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