Microfluidic separation structure, multi-channel separation tube and combined separation tube

Abstract

The utility model relates to a centrifugal separation tube, in particular to a microfluidic separation structure, a multi-channel separation tube and a combined type separation tube, the microfluidic separation structure comprises a body and a cavity which is arranged on the body and can contain liquid, at least one microfluidic channel is arranged on the body and located on the outer side of the cavity, and the multi-channel separation tube is arranged on the body. The inlet end of each micro-fluidic channel is communicated with the cavity, and when the separation structure works centrifugally, liquid in the cavity flows into the micro-fluidic channels from the inlet ends under the siphon action and then flows out from the outlet ends of the micro-fluidic channels. According to the separation structure disclosed by the utility model, the separation of layer liquid is realized by adopting the micro-fluidic channel, manual extraction is not needed, and the separation efficiency is improved on the basis of ensuring the separation and purification effects. Meanwhile, a multi-channel separation tube is provided by arranging a plurality of micro-fluidic channels, multi-channel separation can be carried out on layer liquid at the same time, and the separation efficiency is further improved.