| | 英国Whatman 1450-240，Grade 50硬化低灰级定量滤纸，2.7 μm，24CM | 8 | ￥847.00 | ￥847.00 | | ￥847.00 |  |
| | Whatman MP21 MicroPlus10407713 MP21 ST 0.45uM 47MM 100/PK，尺寸：47MM 孔径0.45um | 8 | ￥876.00 | ￥876.00 | | ￥876.00 | |
| | Whatman MP31 MicroPlus10407734 MP31 ST 0.45uM 50MM 100/PK，尺寸：50MM 孔径0.45um | 9 | ￥918.00 | ￥918.00 | | ￥918.00 | |
