Abstract
A manometric system has been developed for automatically performing hydrogenations, autoxidations and similar gas-liquid phase reactions. Incorporation of an ion chamber permits radio-active isotope experiments. Nonradioactive isotopes (such as deuterium and O18) are monitored by attaching the apparatus to a mass spectrometer. Automatic recording of gas volume and radioactivity establishes a permanent record and allows unattended operation. Use of a servomotor-driven syringe eliminates all mercury, including mercury leveling bulbs. The flow-through construction of the syringe permits circulation of the gas phase and, as required in isotopic experiments, obviates the dead space inherent in classical manometers. Basic electronics and readily available components enhance operation and construction. Typical hydrogenations with accompanying graphs showing gas uptake, reaction time and radioactivity concn illustrate the utility of the apparatus and the ease of collecting data.
Similar content being viewed by others
References
Am. Radio Relay League, “The Radio Amateur’s Handbook,” 38th ed., West Hartford, Conn., 1961, Ch. 7.
Bitner, E. D., E. Selke and H. J. Dutton, JAOCS41, 1–3 (1964).
Clark, D. B., Instr. Control Systems36, No. 2, 93 (1963).
Funnell, W. S., and G. I. Hoover. J. Phys. Chem.31, 1099 (1927).
Instr. Control Systems.35, No. 5, 119–122 (1962).
Ibid. “Buyers’ Guide” 36, Part 2, 105–106 (1964).
Intern. Telephone and Telegraph Corp., “Reference Data for Radio Engineers,” 4th ed., American Book-Stratford Press, Inc., New York, N.Y., 1957, Ch. 12.
Johnston, A. E., D. Macmillan, H. J. Dutton and J. C. Cowan, JAOCS39, 273–276 (1962).
Lapluye, G.. Bull. Soc. Chim. France No. 10, 2288 (1963).
Nystrom, R. F., Consultation report to Northern Lab., February 1962.
Ogg, C. L., and F. J. Cooper, Anal. Chem.21, 1400 (1949).
Rosen, F. D., Rev. Sci. Instr.24, 1061 (1953).
Scanlan, J., and J. R. Dunn, J. Sci. Instr.38, 28–30 (1961).
Weissberger, A., “Techniques of Organic Chemistry” 2nd ed., Vol. III, Part 2, Lb. Eng., Interscience Publishers, Inc., New York, 1957, p. 366.
Author information
Authors and Affiliations
Additional information
No. Utiliz. Res. & Dev. Div., ARS, USDA.
About this article
Cite this article
Bitner, E.D., Dutton, H.J. Automated manometric apparatus. J Am Oil Chem Soc 41, 720–723 (1964). https://doi.org/10.1007/BF02676255
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02676255