The utility model belongs to the technical field of environmental water body monitoring technology and specifically relates to a partial pressure of carbon dioxide detector in water, including protective housing, sample cell, control module and a plurality of detecting element, wherein control module set up in in the protective housing, the protective housing lower extreme stretches into in the sample cell the protective housing lower extreme is equipped with a plurality of detecting element, each detecting element all with control module links to each other, a plurality of detecting element include carbonate ion specific electrode, pH electrode, temperature sensor and salinity sensors. The utility model discloses the hydrolysate carbonate that uses carbon dioxide is testing object, has realized utilizing carbon dioxide partial pressure in the polymer film ion specific electrode direct detection water, makes carbon dioxide's quantitative field monitoring enable, in addition also greatly reduced of cost.
; 梁荣宁
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