Filter, adapter, and microvolume ultrafiltration bottle

Abstract

The present disclosure provides a filter, an adapter, and a microvolume ultrafiltration bottle. The filter comprises a tubular structure that penetrates vertically. The inner wall of the tubular structure gradually converges from top to bottom towards the centerline to form an inverted tapered inner cavity structure, with a tapered hole at the bottom of the inverted tapered inner cavity structure. A filter disc connection part is arranged at the lower end of the tubular structure, and a bottom flow guiding channel or bottom flow guiding zone is arranged between the tapered hole and the filter disc connection part. The inner wall of the lower end of the adapter is connected with the filter. The microvolume ultrafiltration bottle comprises a bottle body and the adapter arranged at the bottle mouth and extending downwards into the bottle body, with the filter connected with the bottom of the adapter.

Dependencies are inferred from the claim text.