American Instrument

Obtainable from Parr Instrument Co., Moline, Illinois, U.S.A. An equivalent apparatus is manufactured by American Instrument Co., Silver Springs, Maryland, U.S.A-, and by C. W. Cook and Sons Ltd., 97, Walsall Road, Birmingham, 22B, England. 

A suitable apparatus is the Aminco high-pressure hydrogenation apparatus, manufactured by the American Instrument Company, Silver Springs, Maryland. 

Figure 21, Ultramicro instrument for Na and K estimation. Nanoliter specimen is placed on wire (inset) and is then vaporized in the glow discharge with helium (American Instrument Co,),...

The first complete commercial spectrofhiorimeter was manufactured by the American Instrument Company (Aminco), based on a design published by Bowman, Caulfield, and Udenfriend in 1955. The appearance of this commercial model instrument was of utmost importance for spectrofluorimetric investigations by numerous chemists, biologists, and biochemists [5],... 

Analysis of griseofulvin, was determined for carbon, hydrogen, and chlorine. The carbon, and hydrogen analysis was performed on a Perkin Elmer Model 240 instrument. Analysis for chlorine was performed by combustion of the sample and coulometric titration using an American Instrument Co. 

The glass helices may be purchased from the Scientific Glass Apparatus Company, Bloomfield, N. J., or the American Instrument Company, Silver Spring, Md. Wire helices are readily made from No. 18 B. and S. gauge copper or Nichrome wire, by simultaneously winding two strands side by side on a j-in. steel mandrel. The spirals are cut into single helices by means of a thin emery wheel and then removed from the mandrel. 

An electrically heated pressure bomb, 4.5 in. in diameter, of 1.5-1. capacity, was employed (American Instrument Company, Model E 1143, cold-tested to 23,000 p.s.i.). About 90 minutes was required to raise the temperature from 25° to 185°. 

American Instrument Co. Inc., Bulletin No. 2334, Silver Spring, Maryland. 

American Instrument Company, Silver Spring, Maryland. 

Instrumentation for measuring water activity by electronic sensors (American Instrument Company, Beckman Instruments, Nova Sina AG, and Rotronic AG) Plastic sample holder with lid (diameter -4.0 cm height 1.0 cm usually supplied with instrument)... 

Chloride titrator, American Instrument Co., Silver Springs, Maryland Coulo-matic titrimeter, Fisher Scientific Co., New York, New York. 

Optical cells meeting the above specifications have been made by the American Instrument Co., Silver Spring, Maryland.69 It is necessary to check the zero point of the empty tubes from time to time to make certain that strains have not developed during use. 

The checkers used a 250-mL Hastelloy pressure vessel. The submitters used a 250-mL autoclave available from American Instrument Co. 

Jacket temperature was controlled by connecting the thermoregulator and the heater to an American Instrument Co. relay model No. 4-5300. Power to the heater was supplied by a 60-cycle variable transformer normally operated at about 10 volts. Jacket temperature was recorded by feeding the thermocouple output through a Leeds and Northrup d.c. amplifier (No. 9835-B) to a Speedomax H Azar strip chart recorder. 

Figure 10-4. French pressure cell alone (a) and assembled into a hydraulic press (b). Diameter of the orifice through which cells pass may be adjusted using the valve located on the side of the pressure cell. This instrument accommodates sample volumes between 4 and 50 ml by lowering or raising the piston, respectively. The piston is raised to its maximum position in the cell that is assembled in the press and is completely lowered in panel (a). (Courtesy of American Instrument Company, Silver Spring, Md.)...

Fig. 5-32a. High-pressure hydrogenation apparatus. [American Instrument Co.)...

A hydrogenation vessel supplied by the American Instrument Company is satisfactory. A certain amount of copper plates out on the walls of the bomb during the reaction, but most of it is removed when the apparatus is cleaned. 

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