Trace detection sampler

The utility model relates to the technical field of medical apparatuses and instruments, in particular to a trace detection sampler; the trace detection sampler comprises an air bag; the lower end of the air bag is fixedly connected with a plastic dropper; the upper end of the air bag is fixedly connected with a handle; the lower end of the plastic dropper is connected with a capillary syringe; the plastic dropper and the capillary syringe are marked with scales; the air bag is made of corrosion resisting rubber; the trace detection sampler has reasonable design and is convenient to operate; as the capillary syringe absorbs few sample, the trace detection sampler is more beneficial to guaranteeing the precision of sampling, thereby lightening the working difficulty of staffs and improving the efficiency of medical operation.