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The ETH Laboratory of Ion Beam Physics (LIB) is a physics laboratory located in Science City. It specializes in accelerator mass spectrometry (AMS) and the use of ion beam based techniques with applications in archeology , earth sciences , life sciences , material sciences and fundamental physics .
The new nanotech@surfaces laboratory works on nanostructures, nanotubes as electron sources, and quasicrystalline layers. In Dübendorf, the Functional Polymers department was created. 2004, another new laboratory was established in Dübendorf: Nanoscale Materials Science. It focuses on the development and analysis of nanostructured surfaces ...
A list of chemical analysis methods with acronyms. A. Atomic absorption spectroscopy (AAS) Atomic ... Analytical chemistry; List of materials analysis methods
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
In organic chemistry, an ethyl group (abbr. Et) is an alkyl substituent with the formula −CH 2 CH 3, derived from ethane (C 2 H 6). Ethyl is used in the International Union of Pure and Applied Chemistry 's nomenclature of organic chemistry for a saturated two-carbon moiety in a molecule, while the prefix " eth- " is used to indicate the ...
Ethylenediaminetetraacetic acid (EDTA), also called EDTA acid, is an aminopolycarboxylic acid with the formula [CH 2 N(CH 2 CO 2 H) 2] 2.This white, slightly water-soluble solid is widely used to bind to iron (Fe 2+ /Fe 3+) and calcium ions (Ca 2+), forming water-soluble complexes even at neutral pH.
According to a kinetic analysis by Kilty and Sachtler, the following reactions describe the pathway leading to EO. In the first step, a superoxide (O 2 −) species is formed: [73] O 2 + Ag → Ag + O 2 −. This species reacts with ethylene Ag + O 2 − + H 2 C=CH 2 → (CH 2 CH 2)O + AgO. The resulting silver oxide then oxidizes ethylene or ...
Archaeological materials, such as bone, organic residues, hair, or sea shells, can serve as substrates for isotopic analysis. Carbon, nitrogen and zinc isotope ratios are used to investigate the diets of past people; these isotopic systems can be used with others, such as strontium or oxygen, to answer questions about population movements and cultural interactions, such as trade.