Apparatus for determining total organic carbon

Details Apparatus for determining total organic carbon Apparatus for determining total organic carbon

2011-04-26

2011-04-26

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C422S068100, C422S080000, C422S082010, C422S082020, C436S145000, C436S146000

Reexamination Certificate

active

07931865

ABSTRACT:
An apparatus which comprises: an organic-substance oxidation part in which organic substances contained in a sample water supplied are oxidized into carbon dioxide; a carbon dioxide separation part in which the carbon dioxide contained in the sample water is caused to permeate and come into a measurement water; and a conductivity measurement part in which the conductivity of the measurement water is measured. The carbon dioxide separation part comprises: a sample water channel in which sample water flows; an intermediate water part in which intermediate water having a higher pH value in a neutral region than the sample water is present; and a measurement water channel through which the measurement water comprising deionized water flows. The sample water channel is in contact with the intermediate water part through a gas-permeable membrane, and the intermediate water part is in contact with the measurement water channel through a gas-permeable membrane.

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patent: 2003/0211626 (2003-11-01), Davenport et al.
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patent: 2005-321265 (2005-11-01), None
patent: 2006-090732 (2006-04-01), None
patent: WO 91/13362 (1991-09-01), None
International Search Report for the Application No. PCT/JP2006/320625 mailed Jan. 16, 2007.

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