Abstract
The indications on packages of paper bags for electric vacuum cleaners had antimicrobial agents changed. Benzimidazole and biguanide compounds were newly indicated as antimicrobial agents, and pyrethroid compounds were as insecticides. Thiabendazole and methyl benzimidazolylcarbamate were identified as benzimidazole compounds. In 3 or 2 out of 7 paper bags, these two compounds were determined in the ranges of concentration of 3-513 μg/g and 1-160 μg/g by high performance liquid chromatography (HPLC), respectively. In 1 out of 7 paper bags, as a biguanide compound, chlorhexidine was identified and determined in the concentration of 1300 μg/g by HPLC. On the other hand, in 5 out of 7 paper bags, as a pyrethroid compound, permethrin was identified and determined in the concentration of 82-6310 μg/g by gas chromatography. In most of the paper bags analyzed, larger amounts of these 4 compounds were present in the inner bags than in the outer bags.
