Abstract:
The invention provides exemplary systems, devices and methods for manipulating and handling multi-well plates. In one exemplary embodiment, a system is provided which comprises a robot having a base member and at least one arm. The arm includes a grasping mechanism which is adapted to grasp the plate. Further, the grasping mechanism is configured to receive the plate in a repeatable and known location such that the location of each well relative to the grasping mechanism is known by the robot.
Abstract:
The invention relates to a holder in which sample-holding plates can be handled. It has a retainer (49) for pressing a plate placed in the holder both against the back wall and against a side wall. Thus a plate of a certain type will always settle in the same position in the holder. It is also possible to use in the holder plates of many sizes, which can be kept in place during handling owing to the retainer. The invention is suitable for use in particular in assay methods in which samples to be assayed are handled on plates comprising a plurality of wells, for example in optical analysers or other apparatuses.
Abstract:
A liquid dispensing mechanism (34) is provided which includes a dispensing probe having a tip (70) for dispensing liquid, a pump for collectively discharging fluid from the probe tip (70) in measured quantities such as droplets. The dispensing probe has the capability to detect droplet formation and droplet separation from the probe (70) through use of a radio-frequency signal (74, 76) to the probe tip (70) and a conductive element (72) connected to amplifying and analyzing circuitry (78, 80, 82, 84) disposed below the dispensing probe (70) and a reaction well (16) which contains a receiving fluid. The conductive element (72) also detects when the probe has been inserted into the receiving fluid.
Abstract:
The present invention shows a new apparatus in the field of liquid scintillation counting. The conventional liquid scintillation counters have been designed to measure samples in vials, which volume is typically 6 or 20 milliliters. In addition a special purpose liquid scintillation counter, the Betaplate is adapted to measure 6 samples at a time deposited on a multi-well sample plate with fixed format and sample well volume. For avoiding the limitations of the above-mentioned liquid scintillation counters, when samples are deposited on various type multi-well sample plates, a new apparatus is shown which is adapted to measure simultaneously one or several liquid scintillation or corresponding samples deposited in sample plates (10, 20) with various sample well volumes belonging to a preselected assortment of different multi-well sample plate types, each having a characteristic two dimensional array of sample wells.