Abstract: A biosynthetic cerebrospinal fluid control and method of use. Additionally, this invention relates to the isolation and purification of stable liquid human prealbumin, a component in the biosynthetic cerebrospinal fluid control.

Abstract: The present invention relates to a biosynthetic cerebrospinal fluid control and method of use. Additionally, this invention relates to the isolation and purification of stable liquid human prealbumin, a component in the biosynthetic cerebrospinal fluid control.

Abstract: A chromogenic assay for determination of Protein S, using an indicator of Factor Xa as a measure of Protein S concentration. This technique utilizes the dependency of activated Protein C on Protein S in order to inactivate a known portion of Factor VIII. Residual Factor VIII is then activated and acts with Factor IXa to activate Factor X. The chromogenic substrate is then cleaved by Factor Xa and the rate of conversion of the indicator molecule is an indirect indicator of free Protein S.

Abstract: An insulated food serving tray or lid therefore which includes a pair of preformed thermoplastic panels bonded together about a peripheral seam to permanently encase an insulator within a chamber between the panels. At the peripheral seam area, a first panel has an outwardly extending ledge area with a retaining lip. The second panel has a peripheral tongue area that fits inside the lip of the first panel. The panels are joined between the lip and tongue by a bonding material to provide a peripheral seam that is protected from fracture when the tray or lid is laterally banged at the peripheral seam area during handling. A method of forming the tray or lid is disclosed which includes forming the tray or lid with a gap between the insulation and panels at the time of assembly.

Abstract: A multichannel spectrophotometer has a single radiant energy source formed into a multiplicity of radiant energy beams which are each simultaneously intercepted by segments of a rotary source filter wheel, the spectral radiant energy output selected by each filter segment being directed into a separate source radiant energy conduit and transmitted to a remote sample station where a cuvette containing a sample to be analyzed is located, the radiant energy outputs of each cuvette being directed into a separate detector radiant energy conduit where each conduit is intercepted by a filter segment of a second rotating detector filter wheel identical to the source filter wheel and rotated in aligned synchronism therewith, the spectral radiant energy outputs of each segment of the detector filter wheel being further directed into a separate radiant energy detector and signal processing electronics associated with that sample station or spectrophotometer channel from which the radiant energy signal being detected and

Abstract: The present invention relates generally to a device for use in the analysis of fluid samples and, more particularly, to a self-stacking reagent slide which is especially useful in an automated instrument for carrying out quantitative chemical analysis of biological fluid samples.