Abstract: Operations performed according to the example techniques described herein include controlling a probe to pierce a stopper of a container containing a substance, where the stopper provides an air-tight seal for the container, and where the air-tight seal supports an internal pressure in the container. The operations also include detecting the internal pressure based on information from a pressure sensor; determining that the internal pressure is not at a target pressure and, based on determining that the internal pressure is not at the target pressure, controlling the probe either to aspirate air from the container or to dispense air into the container in order to move the internal pressure toward the target pressure.

Abstract: Systems and methods for probe tip heating are disclosed. An exemplary system for probe tip heating can include an enclosure enclosing a probe tip, a heating device, and a fan. The probe tip can be configured to access an internal volume of a stoppered container and to aspirate or dispense a material from or to the internal volume of the stoppered container. The heating device can be configured to heat air circulating within the enclosure. The fan can be positioned to circulate air within the enclosure to heat the tip of the probe.

Abstract: The present disclosure relates to methodologies, systems and apparatus for cooling pump heads and providing balanced cooling and heat transfer between multiple pump heads. Multi-pump systems that are used to pump fluids that vary greatly in density with minor changes in temperature, such as the mobile phase of a C02-based chromatography system, require highly stable temperature conditions. In order to achieve a substantially equal average heat transfer between multiple pump heads and a coolant fluid, coolant fluid may be flowed through coolant passageways within the pump heads in a recursive and/or parallel coolant flow patterns. Such recursive and/or parallel coolant fluid flow patterns provide increased stability in temperature, compressibility, and density of the fluids passing through a multi-pump system.

Abstract: A cleaning device, and method of using the same, for cleaning a probe. The device includes a body defining an inner chamber. An air intake is connected to at least one air channel through the body, the at least one air channel configured to allow air from the air intake to flow into the inner chamber and towards the inner chamber. A liquid intake is connected to at least one liquid channel through the body, the at least one liquid channel configured to allow liquid from the liquid intake to flow into the inner chamber.

Abstract: An example medical diagnostic system includes one or more containers that are usable in a medical diagnostic test. Each container has an identification (ID) tag associated therewith. An ID tag of a container includes memory that is readable and writeable. The memory is for storing information relating to the container. Antennas are configured to communicate wirelessly with ID tags associated with the one or more containers. A control system is configured to store a location of the container based on an identify of the antenna, to select the antenna for communication with the ID tag, and to use the antenna to read at least some of the information from, or to write at least some of the information to, the memory on the ID tag.

Abstract: The present technology generally relates to devices, systems and methods for providing robust sealing between surfaces in a pressurized system, such as a chromatography system. In particular, the devices, systems and methods relate to compliant and resilient parts that can be reused and/or reinstalled while providing a pressure tight sealing surface even within a high pressure environment (e.g., 1000 psi or greater).

Abstract: Systems and methods for probe tip heating are disclosed. An exemplary system for probe tip heating can include an enclosure enclosing a probe tip, a heating device, and a fan. The probe tip can be configured to access an internal volume of a stoppered container and to aspirate or dispense a material from or to the internal volume of the stoppered container. The heating device can be configured to heat air circulating within the enclosure.

Abstract: Operations performed according to the example techniques described herein include controlling a probe to pierce a stopper of a container containing a substance, where the stopper provides an air-tight seal for the container, and where the air-tight seal supports an internal pressure in the container. The operations also include detecting the internal pressure based on information from a pressure sensor; determining that the internal pressure is not at a target pressure and, based on determining that the internal pressure is not at the target pressure, controlling the probe either to aspirate air from the container or to dispense air into the container in order to move the internal pressure toward the target pressure.

Abstract: A cleaning device, and method of using the same, for cleaning a probe. The device includes a body defining an inner chamber. An air intake is connected to at least one air channel through the body, the at least one air channel configured to allow air from the air intake to flow into the inner chamber and towards the inner chamber. A liquid intake is connected to at least one liquid channel through the body, the at least one liquid channel configured to allow liquid from the liquid intake to flow into the inner chamber.

Abstract: The technology generally relates to tailoring a back pressure regulator in a chromatographic system to reduce unswept volume within the back pressure regulator to achieve better sample detection and a reduction in chromatographic band distortion effects.

Abstract: The embodiments of the present disclosure provide a pierceable stopper, comprising a plug portion, and a disk portion disposed on top of the plug portion and comprising a flange extending radially beyond an outer diameter of the plug portion. The embodiments also provide a lyophilization stopper, comprising a body comprising an integral hinge means, and a flange extending radially beyond an outer diameter of the body. Additionally, the embodiments provide a probe assembly, comprising a first needle comprising a hollow cavity and a pointed tip, and a second needle disposed inside the hollow cavity and comprising a rounded tip. The embodiments further provide a cartridge assembly, comprising a first housing comprising a first set of cavities configured to accommodate one or more containers, and a second housing comprising a second set of cavities corresponding to the first set of cavities when the second housing is coupled to the first housing.

Abstract: The present disclosure relates to an apparatus for regulating the average mobile phase density or pressure in a carbon dioxide based separation system. The apparatus includes a controller, a set of pressure or density sensors and a set of instructions capable of determining the pressure drop across a column and adjusting at least one system component or parameter to achieve a pre-determined average mobile phase density or pressure in the system.

Abstract: The present disclosure relates to methodologies, systems, apparatus, and kits for controlling fluid flow within a chromatography system. A makeup pump is configured to pump a makeup fluid into the chromatography system downstream of the column. A first restrictor is located upstream of a detector and downstream of both the makeup pump and the column. Decreasing an output volume of the makeup pump can direct an output from the column through the first restrictor to the detector. Increasing an output volume of the makeup pump can direct the output from the column to a second restrictor located downstream of the makeup pump and the column and in parallel with the first restrictor and the detector.

Abstract: A pierceable self-resealing stopper for a container is disclosed. The disclosed stopper is suitable for sealing a container containing reagents for use in a high-throughput analysis system in which reagents in the container are accessed by an aspirator probe piercing the stopper. The stopper is configured for being pierced and resealing itself a large number of times without degradation of the stopper by coring or fragmentation, for example. A set of protrusions extending from a top surface of the stopper is depressed to stretch a thin diaphragm area between the protrusions prior to and during insertion of the probe. After extraction of the probe, the protrusions are allowed to return to a relaxed state, which discontinues stretching of the diaphragm area and reseals the container.