High-safety aqua regia preparation device

The utility model belongs to the field of environmental monitoring, and particularly relates to a high-safety aqua regia preparation device which is characterized by comprising an acid mixing barrel, a sealing cover arranged at the upper part of the acid mixing barrel, a stirring paddle arranged at the lower bottom of the acid mixing barrel and connected with a motor through a coupler, and an acid gas pipeline connected with the upper part of the acid mixing barrel, the acid mixing barrel is also connected with an acid inlet pipeline; and one end, far away from the acid mixing barrel, of the acid gas pipeline is connected with an absorption device. Compared with the prior art, the device has the beneficial effects that (1) as the device is provided with the sealing parts such as the sealing cover, the sealing container and the one-way valve, the whole device is in a closed state, and acid gas leakage in an experiment process is prevented, so that the safety is improved, and the device is more environment-frie