Capillary-like connector for liquid chromatography, in particular, high-performance liquid chromatography with reduced dispersion and improved thermal characteristics
OwnerHermann Hochgraeber, Joachim Wiechersinventors
Life of this patent
Estimating the term…
Abstract
The invention concerns a capillary-like connector to conduct liquid, in particular, for liquid chromatography, wherein the connector 50, 55 has changing inside cross sections in shape and/or position in the direction of a main flow direction, and an arrangement for liquid chromatography with at least one such capillary-like connector 50, 55.
Claims9
Capillary-like connector to conduct liquids, in particular, for liquid chromatography,
- characterized in that
- the connection (50, 55) in the direction of a main flow direction has alternating inside cross sections in a form and/or position so that alternating radial flow components are forced and thus the radial thorough mixing of the flowing liquids in the connection is reinforced and in this way, the formation of the parabolic flow profile, as known from a strictly circular cross section, is disturbed and prevented.
Connector according to one of the preceding claims, characterized in that the inside cross sections change their position and/or form periodically in the main flow direction.
Connector according to one of the preceding claims, characterized in that a longish core (60) is introduced in the connector, whose outside diameter is smaller than the inside diameter of the connector (50, 55).
Connector according to one of the preceding claims, characterized in that changes of the form and/or position of the connection cross section are not designed rotationally symmetric to the axis of the main flow direction.
Arrangement for liquid chromatography with at least one capillary-like connector (50, 55) according to one of the preceding claims.
Dependencies are inferred from the claim text.