Deposit test tube of buffer solution

The utility model provides a deposit test tube of buffer solution, include that the district is deposited to the lower part, district, round platform and sealed lid are deposited to upper portion, thelower part is deposited to distinguish to deposit to distinguish with upper portion and is connected through the round platform, the district is deposited to the lower part, upper portion is deposited and is communicate into a whole between district and the round platform, the round platform is used for shelving at the test -tube rack, the lower part is deposited the district and is equipped withfirst scale mark, upper portion is deposited the district and is equipped with the second scale mark, upper portion is deposited district's top surface and is connected with the base that has ring groove, sealed lid with the pedestal connection, sealed lid bottom is equipped with with the ring groove complex protrudingly, sealed gai nengyu base lock or open. The utility model discloses the simplestructure leakproofness is