pH A METHOD FOR MEASURING ALKALINITY THROUGH MEASUREMENT OF pH TEMPERATURE AND INORGANIC CARBON COMPONENTS AND A INSTRUMENT FOR MEASURING ALKALINITY BASED ON THE SAME

摘要

The present invention relates to a method for measuring total alkalinity using pH and temperature measurement values of a sample and total inorganic carbon (TIC) measurement values, and a pH detector for measuring an initial pH of a water sample to be measured; A water sample supply unit for supplying a water sample to measure the total amount of organic carbon contained; Phosphoric acid supply unit for removing inorganic carbon such as carbonate ions by lowering the pH of the sample; Combustion oxidizing unit for oxidizing _{organic matter to carbon dioxide (CO 2) by applying heat;A cooling unit for dissipating heat of CO 2} supplied from the combustion oxidizing unit and for condensing moisture by maintaining it at a cooling temperature or lower; A dehumidifying unit to remove the agglomerated moisture; In the gas passing through the combustion oxidizing unit, a salt removal unit that prevents measurement of total organic carbon from being restricted by an ^{excessive concentration of chlorine (Cl − ), which is an interfering substance affecting the detector; And a total that measures the carbon dioxide concentration in the carbon dioxide gas} It relates to an alkalinity analyzer including an organic carbon concentration measuring unit. The present invention can solve the problem of the error in measurement of the titration solution used to reach the optimum end point of the water sample and the cost incurred by the use of the titration solution, and the alkalinity measurement value uses only the pH measurement value and the TOC measurement value. A method can be provided and an unmanned automatic alkalinity measurement system can be provided that improves accuracy, efficiency, convenience and speed.