Automatic liquid sample injection system and method

The invention provides an automatic liquid sample injection system and method.The automatic liquid sample injection system comprises a pump, a flow cell, a waste liquid bottle, a sample bottle and a cleaning bottle, and the pump is used for pumping liquid in the sample bottle and the cleaning bottle to the flow cell; one end of the first pipeline is connected with the pump, the other end of the first pipeline is positioned in the flow cell, one end of the second pipeline is positioned in the flow cell, and the other end of the second pipeline is communicated with the waste liquid bottle; the inner diameter of the first pipeline is 1-2 mm, and the liquid flow in the first pipeline is 5-45 mL/min; and the switching valve is used for enabling the pump to be selectively communicated with the sample bottle or the cleaning bottle. The method has the advantages of small detection error and the like. 本发明提供了液体自动进样系统和方法，所述液体自动进样系统包括泵、流通池、废液瓶、样品瓶和清洗瓶，所述泵用于将所述样品瓶和清洗瓶内的液体抽送至所述流通池；第一管道的一端连接所述泵，另一端处于所述流通池内，第二管道的一端处于所述流通池内，另