analytical weights

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• Weighing scale — Emperor Jahangir (reign 1605 1627) weighing his son Shah Jahan on a weighing scale by artist Manohar (AD 1615, Mughal dynasty, India). A weighing scale (usually just scales in UK and Australian English, weighing machine in south Asian English or… …   Wikipedia

• chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …   Universalium

• Determination of equilibrium constants — Equilibrium constants are determined in order to quantify chemical equilibria. When an equilibrium constant is expressed as a concentration quotient, it is implied that the activity quotient is constant. In order for this assumption to be valid… …   Wikipedia

• protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

• biochemistry — biochemical /buy oh kem i keuhl/, adj., n. biochemic, adj. biochemically, adv. biochemist, n. /buy oh kem euh stree/, n. 1. the science dealing with the chemistry of living matter. 2. the chemistry of living matter. [1880 85; BIO + CHEMISTRY] …   Universalium

• Size-exclusion chromatography — Equipment for running size exclusion chromatography. The buffer is pumped through the column (right) by a computer controlled device Acronym SEC Classification Chromatography Analytes …   Wikipedia

• chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

• Mole (unit) — This article is about physical quantity measurement unit. For other uses, see Mole (disambiguation). The mole is a unit of measurement used in chemistry to express amounts of a chemical substance, defined as an amount of a substance that contains …   Wikipedia

• Dolph Lundgren — Lundgren at the San Die …   Wikipedia

• Berzelius, Jöns Jacob — ▪ Swedish chemist Introduction born August 20, 1779, near Linköping, Sweden died August 7, 1848, Stockholm  one of the founders of modern chemistry. He is especially noted for his determination of atomic weights (atomic weight), the development… …   Universalium

• Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …   Wikipedia