Abstract:
A dispenser apparatus comprises a housing that includes a chamber for holding a sample. A member in the housing is moved relative to the chamber from a first position to a second position to aspirate material into the chamber and is moved from the second position to the first position to dispense material from the chamber. Pressure in the chamber is increased at the end of the dispensing movement to discharge all of the material from the chamber.
Abstract:
A dispenser system for introducing a precise amount of material to be analyzed into a container includes a sample chamber, and apparatus for storing material in the sample chamber. A data record is associated with the container and operation of the storage apparatus is controlled in response to the data record to store a precise amount of material in the chamber which is then transferred to the container for analysis.
Abstract:
Incubation apparatus for use with a cuvette having a projecting processing control member and a plurality of chambers, at least one of which contains a stored chemical material includes a cuvette receptacle with adjacent heaters for incubating material in the cuvette, sensor circuitry responsive to the control member of the cuvette in the container receiving structure for producing an output signal as a function of the data provided by the control portion, and a timer responsive to the sensor circuitry for providing a control signal as an indication of the incubation of the cuvette. The receptacle also includes an interlock slot for receiving the projecting control member.
Abstract:
A CUVETTE ASSEMBLY FOR USE WITH PHOTOMETRIC INSTRUMENTATION INCLUDES A BODY PORTION THAT DEFINES A PLURALITY OF SAMPLE CHAMBERS AND INCLUDES TWO SPACED PARALLEL WALLS. EACH SAMPLE CHAMBER IS DEFINED IN PART BY THE TWO SPACED WALLS AND EACH WALL HAS AN OPTICAL WINDOW ASSOCIATED WITH EACH CHAMBER SO THAT AN OPTICAL PATH THROUGH EACH CHAMBER IS DEFINED, AND THE LENGTHS OF THE OPTICAL PATHS THROUGH THE CHAMBERS ARE EQUAL.