Merck Patent Gmbh

Emd Millipore Corporation

Celine Le Ninivin Glipa

Pascal Rajagopalan

Yves Gaignet

Aristotelis Dimitrakopoulos

Antony Vanheghe

The present patent application relates to a device () for measuring the conductivity of a liquid, which comprises a measuring chamber for containing a sampling volume to be irradiated with UV rays formed in a hydraulic body () which comprises an inlet channel for feeding the measuring chamber with liquid to be measured and an outlet channel for removing the measured liquid from the measuring chamber, the inlet channel and the outlet channel emerging on either side beyond a surface exposed to the UV rays, such that only the sampling volume contained in the measuring chamber is irradiated. The present patent application is also directed towards a use of such a device and to a purification system comprising such a device.

Device for measuring the conductivity of a liquid in order to determine very low levels of total organic carbon (TOC) in pure and ultra-pure water

Disclosed is a method for analyzing the quantity of organic compounds existing in a liquid, such as ultrapure water, at the outlet from a purification device including in series a filter, an oxidizing device and a polishing device, and further including a resistivity measuring device for measuring the resitivity of water to determine the purity thereof. Only one resistivity measuring cell is used, and the outlet points of the filter and the oxidizing device are connected to the resistivity measuring cell by pipes provided with an analysis valve and/or check valves selectively enabling circulation of the liquid within them.

Growing community of inventors

Verneuil sur Seine, France

Celine Le Ninivin Glipa