pass+by+filtration
81chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …
82Construction of the Trans-Alaska Pipeline System — The construction of the Trans Alaska Pipeline System was a massive undertaking involving tens of thousands of people often in extreme temperatures and conditions. Specialized construction techniques were pioneered to build the pipeline, most of… …
83Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
84Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …
85Glacier National Park (U.S.) — Infobox protected area | name = Glacier National Park iucn category = II caption = locator x = 67 locator y = 17 location = Flathead County Glacier County, flagicon|Montana Montana, USA nearest city = Kalispell lat degrees = 48 lat minutes = 48… …
86Edmonton municipal election, 1953 — The 1953 municipal election was held October 14, 1953 to elect six aldermen to sit on Edmonton City Council (William Hawrelak was acclaimed for a second term as mayor) and four trustees to sit on the separate school board (Mary Butterworth,… …
87El Paso, Texas — El Paso redirects here. For other uses, see El Paso (disambiguation). City of El Paso   City   From top left to bottom right: Downtown El Pas …
88textile — /teks tuyl, til/, n. 1. any cloth or goods produced by weaving, knitting, or felting. 2. a material, as a fiber or yarn, used in or suitable for weaving: Glass can be used as a textile. adj. 3. woven or capable of being woven: textile fabrics. 4 …
89animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …
90ion-exchange reaction — ▪ chemical reaction Introduction any of a class of chemical reactions between two substances (each consisting of positively and negatively charged species called ions (ion)) that involves an exchange of one or more ionic components.… …
