| abstract |
The utility model discloses a kind of Nitrogen evaporator, comprise support, be placed with shell, blow needle and the heating arrangement of pipeline, support top is fixed with the shell that is placed with pipeline, support bottom is fixed with heating arrangement, the shell lower surface that is placed with pipeline is provided with dismountable blow needle, blow needle is connected with pipeline, and pipeline and blow needle material are teflon and multipolymer thereof.The utility model contrived experiment equipment technical field, simple and reasonable for structure, corrosion-resistant, explosion-proof, can effectively reduce the background interference of testing environment, can not cause corrosion-deformation, obstruction or the dissolving of blow needle and pipeline, can not pollute sample. |