Liquid chromatograph is bottle lid for flowing phase

The utility model relates to an instrument is used in the laboratory, especially relates to a liquid chromatograph is bottle lid for flowing phase. Liquid chromatograph is bottle lid for flowing phaseincludes introduction port, buffer layer, liquid level, air bed and internal thread layer at least, the introduction port sets up on the buffer layer, the shape of introduction port is the V -arrangement, the liquid level is disposed under the buffer layer, the liquid level is thermoplastic elastomer material parcel water, the sealing layer that obtains, the air bed is disposed under the liquid level, the seal structure layer that the air bed formed for the rubber material, the internal thread level is in the below of air bed. 本实用新型涉及实验室用仪器，尤其涉及种液相色谱仪流动相用瓶盖。所述液相色谱仪流动相用瓶盖至少包括进样口、缓冲层、液体层、空气层以及内螺纹层；所述进样口设置在缓冲层上；所述进样口的形状为V形；所述液体层设置在缓冲层的下方；所述液体层为热塑性弹性体材质包裹水，得到的密封层；所述空气层设置在液体层的下方；所述空气层为橡胶材质形成的密封结构层；所述内螺纹层位于空气层的下方。