Abstract: The present invention provides a recombinant DNA sequence encoding the pseudorabies virus (PRV) glycoprotein gX, host cells transformed by said DNA sequence, the gX polypeptide, and methods and kits for detecting animals infected with PRV.

Abstract: A dissolution testing machine has a container for a liquid and a holder for pellets, a support for supporting the holder within the container and a drive enabling the holder to be reciprocated via its support so that solvent flushes into and out of the holder.The holder may be a mesh tube, or a solid walled tube, closed at both ends by an apertured member. A set of containers may receive the holder successively, each container containing a solvent of the same or different characteristics.

Abstract: The present invention provides a process for the detection of redox reactions by introducing a redox reagent system into a test system, wherein a soluble iodate is additionally added to the test system in an amount which is in excess of the highest amount of disturbing reducing agents present in the test system.The present invention also provides a diagnostic agent for the detection of redox reactions containing a redox reagent system, wherein the test system used additionally contains an iodate which is soluble therein in an amount which is in excess of the highest amount of disturbing reducing agents present in the test system.

Abstract: Method and apparatus for the detection and quantitation of polychlorinated biphenyls (PCB's) utilizing sample preparation by treatment with predetermined quantities of sulfuric acid and lower alkane, in which the alkane--extracted phase is subjected to chromatographic separation of PCB components (116) and electron capture detection of the separated PCB components (118), and in which the detector response is analyzed by pattern recognition comparison (316) for determination and quantitation of PCB's presented in the sample with stored data for standard PCB mixtures.

Abstract: An improved heated fluidized bed reactor and a method of heating such reactor wherein a means defining an annular heated fluidized bed reaction zone is heated by a first heat source supplying heat to the outer periphery of the fluidized bed reaction zone and a second heat source supplying heat to the inner boundary of the annular fluidized bed reaction zone. The present invention is useful for reactions carried out in a fluidized bed reactor, such as the pyrolysis of silane containing gas into silicon.

Abstract: A solution of various benzaldehyde derivatives dissolved in suitable solvents are used in impinger sampling or as a coating on substrates to provide passive, real-time visual colorimetric indication of the presence of hydrazine and its derivatives.