A complex test mixture containing 21 fragrance components was analyzed with the Polyarc system. In a blind study, the Polyarc was shown to provide accurate fragrance component concentrations with a single injection and without the need for calibration of the system. The method using the Polyarc was more accurate than an uncalibrated GC/MS method for 20 out of 21 of the components.
The analysis of volatile organic compounds (VOCs) in solvent-borne as well as waterborne paints and coatings by GC/FID typically requires calibrations to determine the responses of each individual analyte before quantitative information can be obtained. In this application note, the analysis of a commercial coating with the Polyarc System is demonstrated. Because the Polyarc converts all organic molecules to methane before detection in the FID, calibration is not required. Instead, the peak area of one internal standard is used to accurately quantify every component in the mixture (17 analytes in this example).
