PROBLEM TO BE SOLVED: To provide a pipet cartridge having a high water stop capacity and a pipet with a water stopping filter which is equipped with the pipet cartridge.SOLUTION: A pipet cartridge 1 comprises: a porous resin-sintered filter 15 and a housing 14 including a storage part 13 which includes the porous resin-sintered filter 15, a pipet connection part 11 which is located at one end, and a pipetter connection part 12 which is located a the other end. The porous resin-sintered filter 15 is a sintered body containing water absorptive polymer particles and thermoplastic resin particles. A content of the water absorptive polymer of the resin constituting the porous resin-sintered filter 15 is preferably not less than 2 mass% and not more than 15 mass%. The thermoplastic polymer particle preferably contains an ultrahigh-molecular weight polyethylene particle.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】止水能力の高いピペットカートリッジ及びそれを備えた止水フィルタ付きピペットを提供する。【解決手段】本開示のピペットカートリッジ1は、多孔質樹脂焼結フィルタ15と、多孔質樹脂焼結フィルタ15を内包する収容部13と、一方の端部に配置されたピペット接続部11と、他方の端部に配置されたピペッター接続部12とを含むハウジング14とを含む。多孔質樹脂焼結フィルタ15は、吸水性ポリマー粒子と熱可塑性樹脂粒子とを含む焼結体である。多孔質樹脂焼結フィルタ15を構成する樹脂中の吸水性ポリマーの含有量は、好ましくは2質量%以上15質量%以下である。前記熱可塑性樹脂粒子が、好ましくは超高分子量ポリエチレン粒子を含む。【選択図】図3