Advantages of Using Data from Fourier Transform Infrared Spectrophotometers for Process Control

    Volume 12, Issue 1 (January 1984)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 2


    Pike, L
    Manager, Research and Analytical Services, RD&E, Cryovac Division, W. R. Grace & Co., Duncan, SC

    Abstract

    Significant advantages in using data from Fourier transform infrared (FTIR) spectrophotometers instead of conventional prism and grating spectrophotometers for process control measurements have been observed in the research laboratories of the Cryovac Division of W. R. Grace & Co. The advantages center around the ability to quantitate accurately and precisely very low intensity absorbances with the expenditure of significantly less technician time than the older equipment requires. An example of the advantages is illustrated using the measurement of the transvinylene absorbance near 966 cm−1 or 10.35 μm of polyethylene. Use of FTIR spectrophotometers results in a four- to five-fold improvement in precision (reproducibility) and a decrease of 75% in the technician time required to make the measurements. This paper contains the details involved in using the two types of equipment for the above stated measurement and some factors contributing to the advantages obtained by using FTIR.


    Paper ID: JTE11419J

    DOI: 10.1520/JTE11419J

    ASTM International is a member of CrossRef.

    Author
    Title Advantages of Using Data from Fourier Transform Infrared Spectrophotometers for Process Control
    Symposium , 0000-00-00
    Committee E13