Abstract: A multi-dimensional liquid chromatography system includes first and second liquid chromatography systems. The first system is configured for providing a first chromatographic separation of a sample fluid comprised in a first mobile phase and to provide a first effluent including at least a portion of the separated sample fluid. The second system is configured for providing a second chromatographic separation of at least a portion of the first effluent comprised in a second mobile phase. A control unit is configured to operate the first liquid chromatography system by maintaining a first flow rate of the first mobile phase substantially constant during the first chromatographic separation, and to operate the second liquid chromatography system during the second chromatographic separation according to a control value different from the second flow rate, so that a variation in the control value can lead to a variation in the second flow rate.

Abstract: A sample separation device for separating a fluidic sample includes a fluid drive for driving a mobile phase and the fluidic sample when injected in the mobile phase, a sample separation unit for separating the fluidic sample in the mobile phase, and a control unit configured for bracketing the fluidic sample between two mobile phase portions of the mobile phase. At least one of the mobile phase portions is arranged directly next to the fluidic sample and has a higher solvent strength compared to a solvent of the fluidic sample.

Abstract: A fluid processing apparatus includes a first fluid separation apparatus including a first fluid pump, configured for driving a first mobile phase, and a first separation unit configured for separating a fluidic sample when within the first mobile phase. A sampling unit includes a modulation buffering unit and a modulation drive, wherein the modulation drive is configured for introducing fluid into the modulation buffering unit. A switching unit is configured, in a first switching state, for introducing fluid into the modulation buffering unit from downstream of the first separation unit, and, in a second switching state, for introducing fluid buffered in the modulation buffering unit in a first flow path between the first fluid pump and the first separation unit.

Abstract: In some examples, an organizer may include a plurality of inserts. At least one insert of the plurality of inserts may include at least a front panel and an opposite back panel that form the at least one insert, and at least one instrument component disposed hi the at least one insert. The organizer may further include a binding mechanism that attaches the plurality of inserts.

Abstract: A process of controlling a sample separation apparatus for separating a fluidic sample includes determining whether the sample separation apparatus is appropriate for carrying out a predefined operation, by simulating the operation of the sample separation apparatus, and taking an action depending on a result of the determining.

Abstract: A fluid processing apparatus includes a first fluid processing unit and a second fluid processing unit. A fluid unit is fluidically coupled to the first fluid processing unit and includes a first buffering unit configured for buffering fluid, and/or a mask flow source configured for providing a mask fluid or a flow thereof. A first coupling point is fluidically coupled between the first fluid processing unit and the fluid unit. A modulation unit is configured, selectively, for withdrawing fluid from the first coupling point, or for transferring withdrawn fluid into the second fluid processing unit. The apparatus may be utilized for chromatography.

Abstract: A multi-dimensional liquid chromatography system includes first and second liquid chromatography systems. The first system is configured for providing a first chromatographic separation of a sample fluid comprised in a first mobile phase and to provide a first effluent including at least a portion of the separated sample fluid. The second system is configured for providing a second chromatographic separation of at least a portion of the first effluent comprised in a second mobile phase. A control unit is configured to operate the first liquid chromatography system by maintaining a first flow rate of the first mobile phase substantially constant during the first chromatographic separation, and to operate the second liquid chromatography system during the second chromatographic separation according to a control value different from the second flow rate, so that a variation in the control value can lead to a variation in the second flow rate.

Abstract: A sampling unit for handling a sample fluid includes a sample container having a length and being configured for receiving and storing the sample fluid, and a sample segment dispatching unit configured for providing a plurality of individual sample packages of the fluidic sample, each contained in a respective volume segment along the length of the sample container, and for individually dispatching each of the plurality of individual sample packages for further processing in a fluid processing unit.

Abstract: In a method for processing successive fluidic sample portions provided by a sample source, sample reception volumes are filled successively temporarily with at least a respective one of the sample sections, and the sample sections are emptied successively out of the sample reception volumes in such a way, that, while emptying, it is avoided to bring two respective ones of the sample sections, which have not left the sample source directly adjacent to one another, in contact with one another.

Abstract: A control device for controlling at least part of a sample separation apparatus for separating a fluidic sample, the sample separation apparatus including at least two fluid accommodation volumes having different flow through properties and each being configured for temporarily accommodating fluidic sample, wherein the control device is configured for controlling operation of at least part of the sample separation apparatus for at least partially compensating sample separation artifacts resulting from the different flow through properties of the fluid accommodation volumes.

Abstract: A fluid processing device (10) for processing fluid, wherein the fluid processing device (10) comprises a first fluid drive unit (20) configured for driving a first fluid along a first flow path (85), a second fluid drive unit (20?) configured for driving a second fluid along a second flow path (86), and a fluidic switch (90) fluidically coupled to the first flow path (85) and to the second flow path (86) and configured for being switchable for transferring first fluid from the first flow path (85) into the second flow path (86) without interruption of fluid flow along at least one of the first flow path (85) and the second flow path (86).

Abstract: A control device for controlling at least part of a sample separation apparatus for separating a fluidic sample, the sample separation apparatus including at least two fluid accommodation volumes having different flow through properties and each being configured for temporarily accommodating fluidic sample, wherein the control device is configured for controlling operation of at least part of the sample separation apparatus for at least partially compensating sample separation artifacts resulting from the different flow through properties of the fluid accommodation volumes.

Abstract: In a method for processing successive fluidic sample portions provided by a sample source, sample reception volumes are filled successively temporarily with at least a respective one of the sample sections, and the sample sections are emptied successively out of the sample reception volumes in such a way, that, while emptying, it is avoided to bring two respective ones of the sample sections, which have not left the sample source directly adjacent to one another, in contact with one another.

Abstract: A secondary stage sample separation device for separating at least a portion of a fluidic sample includes a fluidic interface configured for forming a detachable fluidic coupling between a primary stage sample separation device and the secondary separation device so that the fluidic sample separated by the primary stage sample separation device is fluidically supplyable to the secondary stage sample separation device via the fluidic interface for further separation, wherein the secondary stage sample separation device is further configured for separating at least a portion of the supplied fluidic sample independent of a flow rate of the fluidic sample supplied from the primary stage sample separation device at the fluidic interface.

Abstract: A secondary stage sample separation device for separating at least a portion of a fluidic sample includes a fluidic interface configured for forming a fluidic coupling between a primary stage sample separation device and the secondary separation device, so that the fluidic sample separated by the primary stage sample separation device is fluidically suppliable to the secondary stage sample separation device via the fluidic interface for further separation, and a pressure reduction mechanism configured for reducing pressure at the fluidic interface at least in the event of an overpressure or of an excessive pressure increase.

Abstract: A fluid processing device (10) for processing fluid, wherein the fluid processing device (10) comprises a first fluid drive unit (20) configured for driving a first fluid along a first flow path (85), a second fluid drive unit (20?) configured for driving a second fluid along a second flow path (86), and a fluidic switch (90) fluidically coupled to the first flow path (85) and to the second flow path (86) and configured for being switchable for transferring first fluid from the first flow path (85) into the second flow path (86) without interruption of fluid flow along at least one of the first flow path (85) and the second flow path (86).