土壤和生物固体中4-壬基酚、邻苯二甲酸酯和多氯联苯的分析
Analysis of 4-nonylphenols, phthalates, and polychlorinated biphenyls in soils and biosolids.
作者信息
Gibson Richard, Wang Min-Jian, Padgett Emma, Beck Angus J
机构信息
Department of Agricultural Sciences, Imperial College London, Wye Campus, Wye, Ashford, Kent TN25 5AH, United Kingdom.
出版信息
Chemosphere. 2005 Dec;61(9):1336-44. doi: 10.1016/j.chemosphere.2005.03.072. Epub 2005 Jun 24.
When sewage sludge is added to agricultural land, organic chemicals contaminants are also added. The fate of these chemicals, particularly those shown to have oestrogenic potential, has received much research and regulatory interest in recent years. A method was developed for the analysis of 4-nonylphenols, phthalates, and PCB congeners in soils, mesophilic anaerobially digested dewatered (MADD) sewage sludge, and MADD sludge-amended soil. After Soxhlet-extraction, the 4-nonylphenols and phthalates were separated from the PCBs on an isolute cyanopropyl SPE cartridge and analysed by GC-MS directly. The PCBs were acid treated on a Bakerbond PCB-A cartridge, then passed through a gel filtration column of Biobeads SX-3 resin, before GC-MS analysis. The method was successfully validated and then used for routine analysis, where average recoveries of the surrogate standards were 83+/-17% (4-n-heptylphenol), 96+/-11% (dimethyl-tere-phthalate), 101+/-12% (dibenzyl-phthalate), and 79+/-13% (PCBs 6, 54, 104, 155, and 198).
当污水污泥施用于农田时，有机化学污染物也会随之进入。近年来，这些化学物质，尤其是那些具有雌激素活性的化学物质的归宿受到了广泛的研究和监管关注。本文建立了一种分析土壤、中温厌氧消化脱水（MADD）污泥以及添加了MADD污泥的土壤中4-壬基酚、邻苯二甲酸酯和多氯联苯同系物的方法。采用索氏提取法后，4-壬基酚和邻苯二甲酸酯在isolute氰丙基固相萃取柱上与多氯联苯分离，然后直接用气相色谱-质谱联用仪（GC-MS）分析。多氯联苯在Bakerbond PCB-A柱上进行酸处理，然后通过Biobeads SX-3树脂凝胶过滤柱，再进行GC-MS分析。该方法经成功验证后用于常规分析，替代标准物的平均回收率分别为：83±17%（4-正庚基酚）, 96±11%（邻苯二甲酸二甲酯）, 101±12%（邻苯二甲酸二苄酯）, 以及79±13%（多氯联苯6、54、104、155和198）。
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