Abstract:
An automatic sampler including a rinsing unit for rinsing a needle 2 by immersing the needle 2 into a rinsing solution in a rinsing chamber 1 and a gas injecting unit for injecting gas towards an outer surface of the needle 2 when the needle 2 is raised from the rinsing solution. According to this configuration, it is possible to wipe out a contaminated rinsing solution remaining on the outer surface of the needle 2 by airflow in a non-contact manner.
Abstract:
A sampling aliquotter for aspirating aliquot portions of sample fluid from a closed container and for dispensing aliquot portions into a vessel using horizontal and vertical drives to drive a probe into the closed container, to position the probe above the vessel, and to lower the probe into a cleansing module.
Abstract:
The probe has a triple tube structure, in which an eluate from a liquid chromatograph flows through an innermost flow passage, a matrix solution flows through a flow passage outside the innermost flow passage, and the air or acetone flows through an outermost flow passage. Before analysis, acetone is flowed to rinse the matrix compound deposited in the previous analysis and clean the tip portion of the probe, and then the air is flowed to evaporate the rinsing solution.
Abstract:
A method and apparatus for cleaning and surface conditioning objects using plasma are disclosed. One embodiment of the method discloses providing a plurality of elongated dielectric barrier members arranged adjacent each other, the elongated dielectric barrier members having electrodes coupled therein, providing a ground plane, introducing the objects proximate the elongated dielectric barrier members and the ground plane, and producing a dielectric barrier discharge to form plasma between the ground plane and the elongated dielectric barrier members for cleaning the objects. One embodiment of the apparatus for cleaning objects using plasma discloses a plurality of elongated dielectric barrier members arranged adjacent each other, a plurality of electrodes, each contained within, and extending substantially along the length of, respective ones of the elongated dielectric barrier members, and a ground plane proximate the plurality of elongated dielectric barrier members.
Abstract:
The present invention relates to methods and apparatuses for the use of atmospheric pressure non-thermal plasma to clean and sterilize the surfaces of liquid handling devices.
Abstract:
A plate washing system and method of cleaning pipes of the plate washing system. The plate washing system includes at least one manifold having a plurality of pipes configured to be provided within wells of a plate in order to wash the wells, at least one manifold having a plurality of pipes, a tank, an ultrasonic transducer mounted to the tank, and a control system. When tips of the pipes are positioned within the tank, the control system activates the ultrasonic transducer in order to vibrate a fluid within the tank.
Abstract:
The present invention provides fluid removal heads and related multi-well container processing systems for the efficient removal of fluids from multi-well containers. Methods of removing fluid from multi-well containers are also provided.
Abstract:
The invention provides probe washing cups and methods. A probe washing cup has a washing well and a waste cup. A drying section is disposed between an open end of the probe washing cup and an inlet plane of the washing well. The drying section has a channel that is aligned with the washing well. The channel has an opening for receiving the probe therethrough.
Abstract:
A method used to detect endotoxin uses a system (10) having bidirectional pump (20), multiport valve (30), fluid section valve (170), fluid holding member (50), solenoid valve (60), air source (63) and detector (100). Sample, LAL reagent and chromogenic substrate fluid segments are introduced into the holding member (50) between air segments, the reagents are then mixed and introduced into the detector (100) for measurement The system can be washed with an alkaline solution and followed by cthanol, or washed with tricthylaminc followed by water.
Abstract:
A reaction vessel with a bottom drain opening supporting a selected unpressured head of fluid by the surface tension of the fluid. A device processing zone includes a support for spaced rows of reaction vessels, passages communicating with their drain openings of supported vessels, and a pressure source for selectively draining fluid through the drain openings. Generally horizontal bar magnets are supported for selected vertical movement between the vessel rows. A dispensing head has X discharge openings selectively positionable over X selected reaction vessels. A metering pump mechanism selectively meters X a selected quantity of fluid a bulk supply (where X is at least four), and selectively pumps the metered selected quantities through the drain openings to the selected reaction vessels. Methods of drawing fluid from the vessels using the pressure source, and moving the magnets to form a pellet of analyte are also included.