The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2013

Filed:

Jun. 04, 2009
Applicants:

Pascal Rajagopalan, Aulnay-sous-Bois, FR;

Antony Vanheghe, Asnieres sur Seine, FR;

Celine Le Ninivin, Vemeuil sur Seine, FR;

Aristotelis Dimitrakopoulos, Saint Martin de Nigelles, FR;

Inventors:

Pascal Rajagopalan, Aulnay-sous-Bois, FR;

Antony Vanheghe, Asnieres sur Seine, FR;

Celine Le Ninivin, Vemeuil sur Seine, FR;

Aristotelis Dimitrakopoulos, Saint Martin de Nigelles, FR;

Assignee:

EMD Millipore Corporation, Billerica, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

This is a method for analyzing the purity of water at the outlet from a purification device. It includes the following steps: a) sending the liquid at the outlet from the filter means to a resistivity measuring cell to determine its resistivity ρ; b) establishing a reference mode by exposing a portion of the liquid to said oxidation means () during a given number of significantly different time periods; c) determining by regression the resistivity at infinity ρof said liquid in this reference mode; d) establishing an analysis mode by causing said liquid to be analyzed to pass through the resistivity measuring cell; e) determining the resistivity at infinity ρof said liquid in this analysis mode by successive iterations; and f) calculating the quantity of organic compounds contained in the purified liquid from this resistivity at infinity ρand at least the values ρand ρ.


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