Publication

Affinity macroligands

2002
Patents

Abstract

Affinity macroligands (AML) comprising a reversibly water soluble poly-N-alkylacrylamide linked to a ligand, and their use in the separation of a target substance from a mixture comprising the target substance and other materials are disclosed. Preferred AMLs have number average molar masses of less than 7,000 g/mol (chain length n typically about 25), mass distributions of less than 1.2 and narrow precipitation-solubility temperature (NPST) interval, typically in the range of 1-2° C.

Official source

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2002
Patents

Abstract

Official source

Related concepts (13)

Molar mass

In chemistry, the molar mass (M) of a chemical compound is defined as the ratio between the mass and the amount of substance (measured in moles) of any sample of said compound. The molar mass is a bulk, not molecular, property of a substance. The molar mass is an average of many instances of the compound, which often vary in mass due to the presence of isotopes. Most commonly, the molar mass is computed from the standard atomic weights and is thus a terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth.

Molecular mass

The molecular mass (m) is the mass of a given molecule, for which the unit dalton (Da) is used. Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element. The related quantity relative molecular mass, as defined by IUPAC, is the ratio of the mass of a molecule to the atomic mass constant (which is equal to one dalton) and is unitless. The molecular mass and relative molecular mass are distinct from but related to the molar mass.

Calcium carbonate

Calcium carbonate is a chemical compound with the chemical formula . It is a common substance found in rocks as the minerals calcite and aragonite, most notably in chalk and limestone, eggshells, gastropod shells, shellfish skeletons and pearls. Materials containing much calcium carbonate or resembling it are described as calcareous. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale.