| 用串联质谱法提高毒鼠强的检测灵敏度 |
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| 引用本文： | 谢增瑞,吴春灵,程相华.用串联质谱法提高毒鼠强的检测灵敏度[J].刑事技术,2003(1):24-25. |
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| 作者姓名： | 谢增瑞 吴春灵 程相华 |
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| 作者单位： | 河南省郑州市公安局刑科所,450003 |
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| 摘 要： | 目的建立一种能避免生物样品中杂质的干扰,提高毒鼠强检测灵敏度的方法。方法应用串联质谱法,对生物样品中的毒鼠强进行检验研究。结果在样品无需净化的情况下,以m/z240为母离子,当激活电压在0.8V左右时,毒鼠强二次电离的离子碎片适中,质谱谱图清晰;此时进样量为1.0ng的毒鼠强,其信噪比(s/n)为87,经与全扫描质谱法进行比较灵敏度大为提高。结论该方法能有效提高毒鼠强检测灵敏度,适用于同类案件检验。
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| 关 键 词： | 串联质谱法 毒鼠强 灵敏度 |
| 文章编号： | 1008-3650(2003)01-0024-02 |
| 修稿时间： | 2001年9月24日 |
A study on detection of tetramine in biological samples by tandem mass spectrometry |
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| XIE Zeng-rui,WU Chun-ling,CHENG Xiang-hua.A study on detection of tetramine in biological samples by tandem mass spectrometry[J].Forensic Science and Technology,2003(1):24-25. |
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| Authors: | XIE Zeng-rui WU Chun-ling CHENG Xiang-hua |
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| Abstract: | GC-MS/MS was applied to analyze tetramine in biological samples for eliminating the effects of the matrix and raising the detection sensitivity.In our study,purification of sample was needn't,ion at m/z240was selected as primary ion and the voltage of0.8v was applied.We have got quite satisfaction daughter ions and spectra.The ratio of signal to noise(s /n)for tetramine is87when the sample injected is1.0ng,the sensitivity is higher than scanning mass spectrometry. |
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| Keywords: | tandem mass spectrometry tetramine sensitivity |
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