Novel atomic fluorescence spectrophotometer detection device

The utility model belongs to the technical field of atomic fluorescence spectrometers, and particularly relates to a novel atomic fluorescence spectrophotometer detection device which comprises a device body, one side of the device body is connected with a rack, the rack is respectively provided with a displacement mechanism and a test tube rack, the displacement mechanism is located above the test tube rack, and the test tube rack is located above the displacement mechanism. The test tube rack comprises an upper supporting plate and a lower supporting plate, the upper supporting plate and the lower supporting plate are connected through a lifting assembly, an upper fixing assembly is connected to the upper supporting plate, a lower fixing assembly is connected to the lower supporting plate, and the upper fixing assembly and the lower fixing assembly are connected through a telescopic assembly. The test tube is fixed through the driving assembly, the upper fixing assembly and the lower fixing assembly, the ph