Saito Koichi, Takekuma Mikiko, Ogawa Masahiko, Kobayashi Susumu, Sugawara Yukio, Ishizuka Masahiro, Nakazawa Hiroyuki, Matsuki Yasuhiko
Dioxin Research Group, Saitama Institute of Public Health, 639-1 Kamiokubo, 338-0824 Saitama, Japan.
Chemosphere. 2003 Oct;53(2):137-42. doi: 10.1016/S0045-6535(03)00305-9.
A simple and rapid method for the extraction and cleanup of dioxins from house dust was developed using an accelerated solvent extraction (ASE) method and a multi-layer silica-gel cartridge. It was found that the WHO-TEQ levels of dioxins extracted from the house dust obtained by both a conventional soxhlet extraction and the ASE were almost equal, when the data obtained by both methods were compared. As for the cleanup method, a multi-layer silica-gel cartridge yielded higher dioxin recoveries than the alkaline digestion method. The average values of the dioxins in house dust from Kumagaya city and Sendai city in Japan (Sendai city is bigger than Kumagaya city with respect to the population and industry), were 15.6 pg TEQ/g (8.6-26.0 pg TEQ/g, n=5, Kumagaya city) and 16.0 pg TEQ/g (5.9-30.5 pg TEQ/g, n=5, Sendai city), respectively.
利用加速溶剂萃取（ASE）法和多层硅胶柱，开发了一种从室内灰尘中提取和净化二噁英的简单快速方法。当比较两种方法获得的数据时发现，通过传统索氏萃取和ASE从室内灰尘中提取的二噁英的WHO-TEQ水平几乎相等。至于净化方法，多层硅胶柱比碱性消解方法具有更高的二噁英回收率。日本熊谷市和仙台市（就人口和工业而言，仙台市比熊谷市大）室内灰尘中二噁英的平均值分别为15.6 pg TEQ/g（8.6 - 26.0 pg TEQ/g，n = 5，熊谷市）和16.0 pg TEQ/g（5.9 - 30.5 pg TEQ/g，n = 5，仙台市）。
