Back to results
US 9,168,507 B2Granted
Methods for quantitating water using ionic liquid salts
AssigneeSigma-Aldrich Co.
InventorDaniel W. Armstrong
Life of this patent
Estimating the term…
Abstract
This disclosure provides methods and devices for quantitating, separating and/or detecting water in a liquid, gas or solid sample comprising one or more chemicals, the method comprising: providing the liquid, gas or solid sample comprising water and the one or more chemicals; and exposing said liquid, gas or solid sample to at least one solid support including at least one dicationic and/or tricationic species of Formula I or II adsorbed, absorbed or immobilized on the solid support.
Claims9
A method for detecting or quantitating water in a liquid sample comprising:
- applying a liquid sample to a capillary column having a gas chromatography stationary phase comprising at least one dicationic species of Formula I:
- and a counter-ion,
- wherein each R is independently selected from the group consisting of alkyl, alkoxy, carbocyclyl, carbocyclylalkyl, heterocyclyl, heterocyclylalkyl and hydroxyalkyl;
- each m is independently 0, 1, 2, 3 or 4;
- and s is 1, 2, 3, 4, 5 or 6;
- and
- separating water from the liquid sample to detect or quantitate water in the liquid sample.
4 more elements
Dependencies are inferred from the claim text.