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1.北京警察学院 刑事科学技术系,北京 102202
2.中国药科大学 药学院,江苏 南京 210009
3.公安部禁毒情报技术中心,毒品监测管控与禁毒关键技术公安部重点实验室,北京 100193
花镇东,博士,副研究员,研究方向:毒品分析,E-mail:28008085@qq.com
收稿日期:2024-10-23,
修回日期:2024-12-30,
录用日期:2025-01-06,
纸质出版日期:2025-05-15
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胡爽,武磊,黄钰,姚晓飞,花镇东.超高效合相色谱-质谱法快速分离和检测苯乙胺类物质异构体[J].分析测试学报,2025,44(05):853-859.
HU Shuang,WU Lei,HUANG Yu,YAO Xiao-fei,HUA Zhen-dong.Rapid Separation and Detection of Phenethylamines Isomers by Ultra Performance Convergence Chromatography-Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(05):853-859.
胡爽,武磊,黄钰,姚晓飞,花镇东.超高效合相色谱-质谱法快速分离和检测苯乙胺类物质异构体[J].分析测试学报,2025,44(05):853-859. DOI: 10.12452/j.fxcsxb.241023476.
HU Shuang,WU Lei,HUANG Yu,YAO Xiao-fei,HUA Zhen-dong.Rapid Separation and Detection of Phenethylamines Isomers by Ultra Performance Convergence Chromatography-Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(05):853-859. DOI: 10.12452/j.fxcsxb.241023476.
苯乙胺类物质是目前滥用较为严重的一类新精神活性物质,具有种类繁多、潜在危害性大、存在大量同分异构体等特点。异构体的结构和性质非常相似,对其准确区分和鉴定,是公安禁毒分析工作面临的难题和挑战。该研究建立了对苯乙胺类物质位置异构体和碳链异构体进行快速分离和检测的超高效合相色谱-质谱方法。在最优条件下,采用Waters ACQUITY UPC
2
BEH色谱柱,超临界流体CO
2
为主要流动相,20 mmol/L的甲酸铵-甲醇溶液为改性剂,柱温60 ℃进行梯度洗脱,使用三重四极杆质谱检测,8.0 min内可实现12种异构体的基本或基线分离。方法的检出限为0.02~0.5 ng/mL,保留时间的相对标准偏差均小于0.30%。与常规的超高效液相色谱-质谱检测方法相比,该方法对异构体的分离效果优异,为苯乙胺类物质的准确定性分析提供了新手段。
Phenethylamines are widely abused currently as a class of new psychoactive substances(NPS). They are characterized by a wide variety of types,high potential harm and the presence of a large number of isomers. The structure and properties of thes
e isomers are very similar,and thus pose great challenges for their accurately distinguishment and identification. In this study,an ultra performance convergence chromatography-mass spectrometry method for the rapid separation and detection of phenethylamines positional isomers and carbon chain isomers was established by using a Waters ACQUITY UPC
2
BEH column,supercritical fluid CO
2
as primary mobile phase,20 mmol/L ammonium formate in methanol as modifier and the column temperature at 60 ℃. Basic or baseline separation of 12 isomers could be achieved within 8.0 minutes. The limit of detection was between 0.02-0.5 ng/mL and the relative standard deviations of retention time were less than 0.30%. Compared with conventional ultra-high performance liquid chromatography-mass spectrometry method,this method is much better in the separation efficiency of isomers,which provides a new means for the accurate qualitative analysis of phenethylamines.
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