Sample gas stripping device and online spectroscopic detection method

The invention provides a sample gas stripping device and an online spectroscopic detection method, and relates to the technical field of chemical detection. The gas stripping sample device comprises a sample tank, a sample introduction groove, an air compression device and a spectrophotometer. The sample tank is used for storing liquid samples. And the sample introduction groove is communicated with the sample tank through a liquid inlet pipe. The air compression device is connected into the liquid inlet pipe through an air inlet pipe and is used for introducing compressed air into the sample introduction groove through the air inlet pipe and the liquid inlet pipe; and a flow controller is arranged on the air inlet pipe. A liquid outlet pipe of the spectrophotometer sample introduction groove is connected with the spectrophotometer, and the sample introduction groove is used for introducing a liquid sample into the spectrophotometer. The online spectroscopic detection method provided by the invention is appli