Abstract: Electrophoresis apparatus comprising a base including a water jacket, a generally horizontal bottom plate having an upper surface, and a lower surface which is supported by the base and which extends over the water jacket, an endless gasket having a lower surface engaging the upper surface of the bottom plate, and having an upper surface, and a generally horizontal top plate having a lower surface seated on the upper surface of the gasket so as to define between the plates and inside the gasket a space adapted to contain a separation medium.

Abstract: An apparatus for electrophoretically separating, visualizing and photographing DNA fragments in agarose gels, the apparatus including an electrophoresis chamber havng a platform and an electrode located on each side of the platform, a transilluminator having a UV light source, a frame defining a viewing opening over said light source, and a UV filtering cover for enclosing said viewing opening, a tray having movable gates for defining an enclosure for the agarose gel in one position and for locating the tray on the platform in the chamber in the other position, and a camera assembly adapted to be mounted on the frame in the transilluminator for providing 1:1 magnification photographs of the DNA fragment migration patterns.

Abstract: A photographic documentation apparatus for obtaining high resolution and continuous tone photographs of a TV monitor or CRT (Cathode Ray Tube) image, the apparatus including a main housing adapted to be mounted on the monitor to prevent movement and assure sharp photographs, a cover for opening the housing to view the monitor, and multiple camera carriages adapted to be mounted on the main housing, each carriage being designed to hold a different camera, and including a guide or indicia indicating the exact setting of each carriage in the main housing.

Abstract: 1. The process for cleaving substituted ammonia compounds containing nitrogen-hydrogen bonds selected from the group consisting of alkali metal amides, urea, biuret, sulfamide, formamide, hydrazine, ethylenediamine, cyanoguanidine and melamine and fluorinating the resulting cleavage products, which comprises in combination the steps of:A. introducing into a reaction zone one or more of the afore-mentioned substituted ammonia compounds as starting material and a fluoride catalyst, said fluoride catalyst being a fluoride of a metal which forms an acid salt with hydrogen fluoride,B. subjecting said starting material to the action of elemental fluorine while in the presence of said catalyst,C. maintaining temperatures in the reaction zone substantially in the range of 0.degree.-300.degree.C. but not above the phase change temperature of the starting material if a liquid, or not above the decomposition temperature of the starting material if a solid, andD.