| 摘要 |
PURPOSE:To prevent a protein or DNA in a sample from reaching the main body of a dispenser when the sample is sucked into a tip by drawing a piston button and prevent the contamination between samples when the tip is replaced to be used. CONSTITUTION:A plug member 6 being a plastic sintered molded product and having a carboxyl group, an amino group or both of the carboxyl group and the amino group introduced into the pore surface thereof is provided to the position in the vicinity of the inside intermediate part or upper part attaching part 4 of the tip becoming the sample storage part attached to the leading end part of a dispenser. |
