| 用于气相色谱和气相色谱-质谱测定植物样品中含氯有机污染物残留的样品前处理方法 |
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| 作者姓名： | Tong L Yang J Wu S |
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| 作者单位： | 国家地质实验测试中心, 北京 100037 |
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| 基金项目： | 国家地质实验测试中心基本科研经费项目(No.2009CSJ03); 中国地质调查局地质调查工作项目(No.1212010816028) |
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| 摘 要： | 根据植物样品中的主要干扰物质,建立了用于气相色谱(GC)和气相色谱-质谱联用(GC-MS)测定植物样品中含氯有机污染物残留的样品前处理方法,有效提高了对植物样品中有机氯农药及多氯联苯检测的灵敏度。采用均质提取法对样品进行提取,考察了凝胶渗透色谱(GPC)和固相萃取(SPE)对提取液的净化效果。结果发现,采用GC测定目标物时,提取液需经GPC和SPE两次净化;而采用GC-MS测定目标物时,仅用SPE一次净化即可。该方法快速、经济、灵敏,适合多种植物样品中有机污染物残留分析的样品前处理要求。
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| 关 键 词： | 气相色谱 气相色谱-质谱 样品前处理 有机氯农药 多氯联苯 植物 |
| 收稿时间： | 2010-11-04 |
Sample pretreatment for determination of chlorinated organic pollutants in plants by gas chromatography and gas chromatography-mass spectrometry |
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| Tong L,Yang J,Wu S.Sample pretreatment for determination of chlorinated organic pollutants in plants by gas chromatography and gas chromatography-mass spectrometry[J].Chinese Journal of Chromatography,2011,29(3):228-233. |
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| Authors: | Tong Ling Yang Jiajia Wu Shuqi |
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| Institution: | National Research Center for Geoanalysis, Beijing 100037, China |
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| Abstract: | The sample pretreatment methods for the determination of chlorinated organic pollutants in plants by gas chromatography(GC) and GC-mass spectrometry(MS) were established.The homogeneous extraction was used to extract the chlorinated organic pollutants from plants.The main interferences in the co-extract from several kinds of plant samples were recognized.The sensitivity of the analysis on organochlorine pesticides and polychlorinated biphenyls(PCB) in plant samples was effectively improved.The removal effic... |
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| Keywords: | gas chromatography(GC) gas chromatography-mass spectrometry(GC-MS) sample pretreatment organochlorine pesticides polychlorinated biphenyls(PCB) plants |
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