| 摘要 |
The current invention relates to an apparatus for performing a centrifugal field-flow fractionation. In particular, in the apparatus according to the invention, radial rotary shaft seals are used for sealing the rotating parts of the shaft for carrying out the centrifugal field-flow fractionation and the stationary parts. Furthermore, a separate line is introduced for reducing the pressure differential across these seals. In such way, the driving force driving sample fluid across the seals is reduced, thereby reducing leakage. |
