Lattuada Rafael M, Pizzolato Tania Mara, Santos João Henrique Z Dos, Peralba Maria do Carmo Ruaro
Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre/RS, Brazil.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2006;41(6):1089-103. doi: 10.1080/10934520600620337.
Identification and quantification of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in fly ashes from incinerator was carried out using capillary gas chromatography/tandem mass spectrometry (GC/MS/MS) with a low resolution ion trap mass spectrometer. Sample extraction was carried out in a cellular disruptor, in Soxhlet and in a conventional ultrasound for comparative purposes. Extraction with cellular disruptor was shown to be comparable to that obtained by the reference Soxhlet extraction, while low recoveries were observed with ultrasound. Hospital incinerator ashes, extracted by cellular disruptor and Soxhlet presented I-TEQ values for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans of 370 +/- 81 ng g(-1) and 533 +/- 55 ng g(-1), respectively, statistically equivalent according to the t-test.
采用配有低分辨率离子阱质谱仪的毛细管气相色谱/串联质谱法（GC/MS/MS），对焚烧炉飞灰中的多氯代二苯并 - 对 - 二噁英和多氯代二苯并呋喃进行了鉴定和定量分析。为作比较，分别在细胞破碎仪、索氏提取器和常规超声仪中进行了样品提取。结果表明，细胞破碎仪提取法与参考索氏提取法的效果相当，而超声提取法的回收率较低。经细胞破碎仪和索氏提取器提取的医院焚烧炉灰中，多氯代二苯并 - 对 - 二噁英和多氯代二苯并呋喃的国际毒性当量（I-TEQ）值分别为370±81 ng g⁻¹和533±55 ng g⁻¹，根据t检验，二者在统计学上等效。
