Patent ID: 7931865
Filing Date: 2011-04-26
Classification: G01N,Y10T

Abstract:
1. An apparatus for determining total organic carbon, comprising: an organic-substance oxidation part for oxidizing organic substances contained in sample water supplied to carbon dioxide; a carbon dioxide separation part having a sample water channel through which the sample water treated with the organic-substance oxidation part flows, an intermediate water part containing intermediate water having a higher pH value in a neutral region than the sample water flowing through the sample water channel, and a measurement water channel through which measurement water composed of deionized water flows, the sample water channel and the intermediate water part being in contact with each other with a gas-permeable membrane being interposed therebetween and the intermediate water part and the measurement water channel being in contact with each other with a gas-permeable membrane being interposed therebetween; and a conductivity measurement part for measuring a conductivity of the measurement water sent from the carbon dioxide separation part.