isotope dilution method
31Uranium-238 — Infobox isotope background =#fc6 text color = image caption = 10 gram sample alternate names = mass number =238 symbol =U num neutrons =146 num protons =92 abundance = 99.284% halflife = 4.46 billion years error halflife = decay product = Thorium …
321-K pot — A 1 K pot (i.e. 1 kelvin pot) is a cryogenic device used to attain temperatures down to approximately 1 kelvin.The 1 K pot is a small vessel in a cryogenic system that is filled with liquid helium. Usually it is a few cubic centimeters in size… …
33Neutron poison — For information on biological effects of excessive ionizing radiation, see radiation poisoning. A neutron poison (also called a neutron absorber or a nuclear poison ) is a substance with a large neutron absorption cross section in applications,… …
34Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
35Activated carbon — Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions …
36Nuclear poison — A nuclear poison, also called a neutron poison is a substance with a large neutron absorption cross section in applications, such as nuclear reactors, when absorbing neutrons is an undesirable effect. However neutron absorbing materials, also… …
37Outline of hydrology — The following outline is provided as an overview of and topical guide to hydrology: Hydrology – study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and… …
38Honey — For other uses, see Honey (disambiguation). Jars of honey and honeycomb …
39Reaction rate — Iron rusting a chemical reaction with a slow reaction rate. Wood …
40Diethyl azodicarboxylate — Diethyl azodicarboxylate …
