Surveillance of di(2-ethylhexyl) phthalate concentrations in mineral water products

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  • ミネラルウォーター類製品におけるフタル酸ジ-2- エチルヘキシルの含有実態調査
  • ミネラルウォータールイ セイヒン ニ オケル フタルサン ジ-2-エチルヘキシル ノ ガンユウ ジッタイ チョウサ

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The concentration of di(2-ethylhexyl) phthalate (DEHP) in mineral water (MW) products were determined using the GC-MS method. After a performance evaluation of the method, the spiked samples, which were prepared with twenty products randomly selected from the 155 MW products, were concurrently analyzed. The analytical results of the spiked samples show that the recovery ranged from 93% to 99%, suggesting that the method is highly applicable to MW products. We surveyed the DEHP concentrations in 155 MW products purchased from Japanese markets in 2018 using the validated GC-MS method. No product was found to have the level that exceeded above the lower limit of quantification (0.007 mg/L), nor at concentrations exceeding the WHO guidelines for drinking water quality (0.008 mg / L).

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