Sample pretreatment and extraction

US9063045B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9063045-B2
Application numberUS-201313958810-A
CountryUS
Kind codeB2
Filing dateAug 5, 2013
Priority dateFeb 28, 2008
Publication dateJun 23, 2015
Grant dateJun 23, 2015

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Abstract

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A method for pretreating and extracting a liquid sample by sorbing an aqueous liquid sample, including an organic analyte and an acid or a base, in a solid sorbent material, and at least partially neutralizing the acid or base by reaction with neutralizing ions retained on a support surface, and contacting the liquid sample-sorbed sorbent material at elevated temperature and pressure with an organic solvent to extract the analyte into said solvent, preferably in a vessel having an extraction chamber with a zirconium metal interior surface.

First claim

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What is claimed is: 1. A method of separating an organic analyte from a base in a sample comprising: a) sorbing a sample in a solid sorbent material having a surface comprising cationic moieties, wherein the sample includes an organic analyte and a base and wherein the cationic moieties react with the base; and b) contacting the sample-sorbed sorbent material with an organic solvent to extract the organic analyte; c) collecting the organic solvent with the extracted analyte, t…

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What does patent US9063045B2 cover?
A method for pretreating and extracting a liquid sample by sorbing an aqueous liquid sample, including an organic analyte and an acid or a base, in a solid sorbent material, and at least partially neutralizing the acid or base by reaction with neutralizing ions retained on a support surface, and contacting the liquid sample-sorbed sorbent material at elevated temperature and pressure with an or…
Who is the assignee on this patent?
Srinivasan Kannan, Richter Bruce, Pohl Christopher A, and 4 more
What technology area does this patent fall under?
Primary CPC classification B01D11/0492. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jun 23 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).