QuEChERS/气相色谱-质谱法同时测定污染土壤中六种芳香化合物

Determination of Six Aromatic Compounds in Pollution Soil by QuEChERS Gas Chromatography-Mass spectrometry

建立了样品采用QuEChERS前处理,结合气相色谱-质谱（GC-MS）法同时测定污染土壤中苯酚、2,4-二氯苯酚、2,4,6-三氯苯酚、邻苯二甲酸二丁酯、邻苯二甲酸二辛酯、苯并[a]芘6种化合物的分析方法,选择离子模式（SIM）检测,外标法定量。测定得到平均回收率为64.0%-105.5%,相对标准偏差在0.43%-3.25%范围。结果表明,该方法快速、简便、灵敏、准确,适用于污染土壤中上述6种物质含量的测定。

We herein report a method of QuEChERS-gas chromatography-mass spectrometry（GC-MS）for the determination of phenot,2,4-dichlorphenol（2,4-DCP）,2,4,6-trichlorphenol（2,4,6-TCP）,dibutylphthalate（DBP）,dioctyl phthalate（DOP）and benzo[a]pyrene（B[a]P）in soil samples.Ion detection mode and external standard method were used for quantification.The average recoveries were64.0%-105.%,and the relative standard deviations were 0.43%-3.25%.The method is rapid and simple with good sensitivity and selectivity.It is suitable for the determination of aromatic compounds in soil samples.