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US 2009/0292136 A1Published application
Anionic acid-labile surfactants and methods of use
AssigneeProtea Biosciences, Inc.
InventorsMatthew Jacob Powell, Trust Tariro Razunguzwa, George Augustine O'Doherty, Miaosheng Li
Life of this patent
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Abstract
Anionic acid-labile surfactants may generally comprise compounds represented by the formula: wherein R1 is independently selected from —(CH2)0-9CH3, R2 is selected from the group consisting of —H and —(CH2)0-5CH3, Y is an anion, X is a cation, and n is an integer from 1 to 8.
Claims38
A compound of the formula:
- wherein R1 is independently selected from —(CH2)0-9CH3, R2 is selected from the group consisting of —H and —(CH2)0-5CH3, Y is selected from the group consisting of —SO3− and —PO3−, X is a cation, and n is an integer from 1 to 8.
A compound of the formula:
- wherein R1 is independently selected from —(CH2)0-9CH3, R2 is selected from the group consisting of —H and —(CH2)0-5CH3, Y is selected from the group consisting of —SO3− and —PO3−, X is a cation, and n is an integer from 1 to 8.
A method of isolating a sample, said method comprising:
- adjusting said sample to pH 6-12;
- mixing a solvent with a compound of the formula:
- wherein R1 is independently selected from —(CH2)0-9CH3, R2 is selected from the group consisting of —H and —(CH2)0-5CH3, Y is selected from the group consisting of —SO3− and —PO3−, X is a cation, and n is an integer from 1 to 8;
- contacting said sample with said mixture to form a sample-surfactant complex;
- cleaving said surfactant from said sample-surfactant complex to form cleavage by-products;
- and
- isolating said sample from said cleavage by-products.
4 more elements
A method of isolating a sample, said method comprising:
- adjusting said sample to pH 6-12;
- mixing a solvent with a compound of the formula:
- wherein R1 is independently selected from —(CH2)0-9CH3, R2 is selected from the group consisting of —H and —(CH2)0-5CH3, Y is selected from the group consisting of —SO3− and —PO3−, X is a cation, and n is an integer from 1 to 8;
- contacting said sample with said mixture to form a sample-surfactant complex;
- cleaving said surfactant from said sample-surfactant complex to form cleavage products;
- and
- isolating said sample from said cleavage products;
- wherein said cleavage products are soluble in said isolated sample.
5 more elements
Dependencies are inferred from the claim text.