Abstract
Round-robin tests were conducted in order to investigate a simple and easy method for preparing a standard gas mixture of volatile organic hazardous air pollutants from their mixed solution by 16 members of the Association for Environmental Analysis in Osaka. Seven compounds (acrylonitrile, dichloromethane, chloroform, 1, 2-dichloroethane, benzene, trichloroethylene, and tetrachloroethylene) were accurately weighed into a vial one by one. An aliquot of this liquid mixture was transferred into a glass vessel (1 or 21) using a microsyringe, and then vaporized. The resulting gas mixtures (about 300 ppm each) were evaluated as a first standard gas by gas chromatography. The obtained results prove this method to be accurate and precise for the preparation of a standard gas mixture.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.