Determination of Organoiodine Antimicrobial Ingredients in Commercially Available Antimicrobial/Deodorant Agents

抄録

In order to grasp the actual conditions of use of three kinds of organoiodine compounds, 3-iodo-2-propynylbutylcarbamate (IPBC), 1-bromo-3-ethoxycarbonyloxy-1, 2-diiodo-1-propene (BECDIP), and 4-chlorophenyl-3-iodopropargylformal (CPIP), which are used as household antimicrobial/antifungal agents and wood preservatives, an analytical method using a gas chromatograph equipped with a flame ionization detector (FID-GC) and gas chromatography mass spectrometry (GC/MS) was employed.The calibration curve (peak area) by FID-GC showed good linearity in the range from 20 μg/ml to 100μg/ml (correlation coefficient R=0.99 or more). A purification method using a liquid-liquid partition by n-hexane/water and the cartridge column (florisil or alumina) was established, and the addition recovery exceeded 90% by this method. By employing this method, the analysis was carried out for 18 commercially available samples. As a result, IPBC was detected from 2 samples of aerosol type fungicides, BECDIP from 4 samples of wood preservatives, and CPIP from one sample of an aerosol type antifungal/insecticidal paint.