Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A gas and vapor generation system with programmed automatic cyclic output.

W J Woodfin

    American Industrial Hygiene Association Journal
    |February 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    On-site screening for benzene in complex environments.

    American Industrial Hygiene Association journal·1995
    Same author

    A comparison of four personal sampling methods for the determination of mercury vapor.

    American Industrial Hygiene Association journal·1980
    Same author

    Gas-chromatographic determination of vinyl chloride in air samples collected on charcoal.

    Analytical chemistry·1976
    See all related articles

    This study introduces a programmable gas and vapor generation system for precise, repeatable contaminant concentration control. The system ensures accurate exposure levels for experiments, demonstrating high reliability with carbon monoxide and toluene.

    Area of Science:

    • Environmental Science
    • Analytical Chemistry
    • Instrument Development

    Background:

    • Accurate control of gas and vapor concentrations is crucial for environmental monitoring and toxicological studies.
    • Existing systems may lack the flexibility for time-varying and repeatable concentration profiles.
    • The need for reliable and programmable gas generation systems is evident in research settings.

    Purpose of the Study:

    • To describe a novel gas and vapor generation system capable of producing time-variable and repeatable contaminant concentrations.
    • To demonstrate the system's flexibility and accuracy in generating specific gas mixtures.
    • To validate the system's performance through experimental testing.

    Main Methods:

    • Development of an electromechanical programmer to control a potentiometer based on a program card.

    Related Experiment Videos

  • Integration of the programmer's output with a linear mass flow controller for precise gas stream management.
  • Utilizing the system to generate known concentrations of carbon monoxide and toluene for experimental validation.

    • Main Results:

    • The system successfully generated contaminant concentrations that varied with time according to programmed curves.
    • Experimental results with carbon monoxide and toluene showed excellent repeatability, ranging from one to three percent for repeated cycles.
    • The system demonstrated significant flexibility in achieving desired concentration ranges.

    Conclusions:

    • The described gas and vapor generation system offers a reliable and programmable solution for controlled environmental exposures.
    • The system's high repeatability and flexibility make it suitable for a wide range of scientific applications.
    • This technology advances the capability for accurate and reproducible gas mixture generation in research and testing environments.