Sample pretreatment device and method for detecting TOC in PFA

The invention relates to the technical field of sample detection, and particularly discloses a sample pretreatment device and method for detecting TOC in PFA. The sample pretreatment device comprises a body, the body is connected with a support, a frame and a matching frame, the support is rotationally connected with a moving assembly, the moving assembly is connected with a plurality of pipe bodies, each pipe body is connected with a liquid passing assembly, and the liquid passing assembly is connected with a liquid outlet. The frame is connected with a pure water tank and a hydrochloric acid solution tank, the body is provided with a constant-temperature water tank and a sewage discharge groove, and the body is provided with a recycling tank communicated with the sewage discharge groove; the pipe body on the electric clamping jaw is driven to move through the arranged moving assembly, so that the pipe body is matched with a pure water tank or a hydrochloric acid solution tank to fill liquid through the liqu