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Efficient extraction of bile acid conjugates with tetraheptylammonium chloride, a liquid ion exchanger.

Journal of lipid research (1967-01-01)
A F Hofmann
ABSTRACT

Ethyl acetate or chloroform solutions of tetraheptylammonium chloride, an oil-soluble quaternary amine, quantitatively extract polar, anionic lipids such as steroid or bile salt conjugates from aqueous solution by a process of anion exchange.

MATERIALS
Product Number
Brand
Product Description

Supelco
Tetrahexylammonium hydrogensulfate, suitable for ion pair chromatography, LiChropur, ≥99.0% (T)
Sigma-Aldrich
Tetrahexylammonium hydrogensulfate, ≥98.0% (T)
Sigma-Aldrich
Tetrahexylammonium bromide, 99%
Sigma-Aldrich
Tetrahexylammonium chloride, 96%
Supelco
Tetrahexylammonium bromide, suitable for ion pair chromatography, LiChropur, ≥99.0% (AT)
Sigma-Aldrich
Tetrahexylammonium hydroxide solution, ~40% in H2O (T)
Sigma-Aldrich
Tetrahexylammonium iodide, ≥99.0% (AT)
Sigma-Aldrich
Tetrahexylammonium hydroxide solution, ~10% in methanol (T)

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