The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 77
... methods de- veloped since 1945 ; this article gives prominence to the principles on which these methods are based , and places important classical techniques in proper perspective . GENERAL CONSIDERATIONS Historical background . The ...
... methods de- veloped since 1945 ; this article gives prominence to the principles on which these methods are based , and places important classical techniques in proper perspective . GENERAL CONSIDERATIONS Historical background . The ...
Page 78
... methods to give identical results or for a physical method to give precise agreement with a chemical method . PRINCIPAL STAGES IN CHEMICAL ANALYSIS The main steps in a complete analysis are ( 1 ) collecting the sample , ( 2 ) deciding ...
... methods to give identical results or for a physical method to give precise agreement with a chemical method . PRINCIPAL STAGES IN CHEMICAL ANALYSIS The main steps in a complete analysis are ( 1 ) collecting the sample , ( 2 ) deciding ...
Page 84
... methods , radiochemistry , ion - exchange , and chro- matographic methods . RONALD BELCHER , Submicro Methods of Organic Analysis ( 1966 ) , gives the essential details of meth- ods for working with samples weighing less than one milli ...
... methods , radiochemistry , ion - exchange , and chro- matographic methods . RONALD BELCHER , Submicro Methods of Organic Analysis ( 1966 ) , gives the essential details of meth- ods for working with samples weighing less than one milli ...
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acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups hydrogen important increased industry insects involved ions isotopes king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang shell Sinhalese social sodium sodium chloride solution southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze