Absorbance detection device and method

The invention provides an absorbance detection device and method. The absorbance detection device comprises a pump and a transmission pipeline, the two bubble detection units are sequentially arranged on the transmission pipeline and are respectively used for detecting bubbles in the to-be-detected liquid in the transmission pipeline; to-be-detected liquid enters the transmission pipeline and the liquid core waveguide; measuring light emitted by the light source enters the liquid core waveguide, and the detector is used for receiving the measuring light emitted from the liquid core waveguide; and the calculation unit obtains the absorbance A of the liquid to be measured by using the parameters of the bubbles, the transmission pipeline and the liquid core waveguide and the measuring light. The method has the advantages of accurate detection and the like. 本发明提供了吸光度检测装置和方法，所述吸光度检测装置包括泵和传输管道；二个气泡检测单元依次设置在所述传输管道上，分别用于检测所述传输管道内待测液体中的气泡；待测液体进入所述传输管道和液芯波导；所述光源发出的测量光入射进所述液芯波导，所述探测器用于接收从所述液芯波导出射的测量光；计算单元利用所述气泡、传输管道、液芯波