摘要
建立加速溶剂萃取后利用气相色谱-质谱法测定土壤中双酚A的检测方法。样品前处理采用加速溶剂萃取,经硅胶柱净化,以HP-5MS色谱柱,采用气相色谱-质谱联用全扫描和选择离子扫描进行分析。结果表明：双酚A在0.1-10.0 mg/L的质量浓度范围内,线性良好,相关系数为0.999 3;方法检出限为0.01 mg/kg（S/N=3）。在0.1,1.0,10 mg/kg这3个加标水平下,样品的平均回收率为82.5%-101.7%,相对标准偏差（RSD）≤3.3%。该方法简便快速,灵敏度及准确度高,可用于土壤中双酚A的分析测定。
A method is developed to determine bisphenol-A in soil with gas chromatography- mass spectrometry（GC-MS） after accelerated solvent extraction. It is carried out by the following steps：prepare samples via accelerated solvent extraction, purify the prepared sample on a silica gel column, further separated it on an HP-5MS column, and then analyze it via GC-MS full scanning and selective ion monitoring（SIM）. The calibration curves of bisphenol-A showed a good linearity and the correlation coefficient and detection limit（S/N=3）thereof are 0.999 3 and 0.01 mg/kg respectively, under the optimized conditions namely ranging from 0.1 mg/L to 10.0 mg/L. The average recovery rate of the sample is within 82.5%-101.7% at the spiked levels of 0.1,1.0,10.0 mg/kg,with the relative standard deviation（RSDs） lower than 3.3%. This method is simple and rapid with high sensitivity and resolution. It can be used to determine the amount of bisphenol-A in soil.
出处
《中国测试》
CAS
北大核心
2016年第3期45-47,63,共4页
China Measurement & Test
