ion exchange resin
121environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
122Mintek — Type Mining and Minerals Research Industry Mining Founded 1934 Headquarters …
123art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …
124dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …
125Ethylenediaminetetraacetic acid — EDTA redirects here. For other uses, see EDTA (disambiguation). Ethylenediaminetetraacetic acid …
126Adsorption — is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a film of molecules or atoms (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid …
127deionizer — de*i on*iz er n. (Chem.) an apparatus used to remove ions from a solution; a common variant contains a mixture of cation exchange resin in the acid form and anion exchange resin in the hydroxyl form inside a replaceable cartridge; ions in aqueous …
128Durrum D-500 — File:D 500.jpg Durrum D 500 Amino acid Analyzer The D 500 Amino Acid Analyzer was designed and built by Durrum Instruments in the late 1960s. It was used by many prestigious Universities and research facilities to test for presence and quantity… …
