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1.江西中医药大学 药学院,江西 南昌 330004
2.江西中医药大学 生命样品直接质谱分析研究室,江西 南昌 330004
3.江西省地质局物化探大队,江西 南昌 330000
4.江西省检验检测认证总院检测认证 技术发展研究院,江西 南昌 330052
方小伟,硕士,讲师,研究方向:有机质谱分析,E-mail:fxw273@126.com
纸质出版日期:2024-08-15,
收稿日期:2024-04-03,
修回日期:2024-05-18,
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幸慧玉,周亮,朱腾高,康斯坦丁,刘九梅,陈焕文,方小伟.电喷雾萃取电离-串联质谱测定鲜竹沥中的二苯并[a,h]蒽[J].分析测试学报,2024,43(08):1280-1286.
XING Hui-yu,ZHOU Liang,ZHU Teng-gao,Konstantin Chingin,LIU Jiu-mei,CHEN Huan-wen,FANG Xiao-wei.Determination of Benzo[k]tetraphene in Fresh Bamboo Juice by Electrospray Extraction Ionization Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(08):1280-1286.
幸慧玉,周亮,朱腾高,康斯坦丁,刘九梅,陈焕文,方小伟.电喷雾萃取电离-串联质谱测定鲜竹沥中的二苯并[a,h]蒽[J].分析测试学报,2024,43(08):1280-1286. DOI: 10.12452/j.fxcsxb.24040305.
XING Hui-yu,ZHOU Liang,ZHU Teng-gao,Konstantin Chingin,LIU Jiu-mei,CHEN Huan-wen,FANG Xiao-wei.Determination of Benzo[k]tetraphene in Fresh Bamboo Juice by Electrospray Extraction Ionization Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(08):1280-1286. DOI: 10.12452/j.fxcsxb.24040305.
采用电喷雾萃取电离-串联质谱(EESI-MS/MS)技术,在优化条件下建立了鲜竹沥中二苯并[a,h]蒽(DBA)的快速检测方法。在正离子检测模式下,对离子传输管温度、喷雾电压、电喷雾溶剂流速、样品流速进行优化。以硝酸银的甲醇溶液为电喷雾溶剂,诱导DBA和Ag
+
形成[DBA+Ag]
+
、[2DBA+Ag]
+
等特征离子,再结合碰撞诱导解离技术,最终实现了鲜竹沥中DBA的快速定性定量检测。实验结果表明,DBA在0.1~100 μg/L质量浓度范围内线性良好,线性相关系数(
r
2
)为0.998 0,方法检出限(LOD)为0.054 μg/L,定量下限(LOQ)为 0.179 μg/L。该方法对鲜竹沥中DBA的加标回收率为81.5%~87.1%,相对标准偏差为1.9%~3.9%。所建方法具有无需复杂样品预处理、准确度高、可直接快速检测等优点,适用于鲜竹沥中DBA的快速筛查与直接分析,同时也为其他PAHs的检测提供了技术手段。
Utilizing electrospray extraction ionization tandem mass spectrometry(EESI-MS/MS) technology,a rapid detection method for benzo[k]tetraphene(DBA) in fresh bamboo juice extract was developed under optimized working conditions. The experiment was conducted in positive ion detection mode,with optimization of ion transfer tube temperature,spray voltage,electrospray solvent flow rate,and sample flow rate. By using a methanol solution of silver nitrate as the electrospray solvent,characteristic ions such as[DBA+Ag]
+
,[2DBA+ Ag]
+
,etc.,were formed,combined with collision-induced dissociation(CID),to rapidly qualitative and quantitative detection of DBA in fresh bamboo juice. Results demonstrated good linearity of DBA in the concentration range of 0.1-100 μg/L,with a linear correlation coefficient(
r
2
) of 0.998 0,a method detection limit(LOD) of 0.054 μg/L,and a limit of quantitation(LOQ) of 0.179 μg/L. The spiked recovery is 81.5%-87.1% for DBA in fresh bamboo juice,with a relative
standard deviation of 1.9%-3.9%. Notably,this method offers advantages such as simplified sample preparation,high accuracy,and direct and rapid detection,making it suitable for screening and analyzing DBA in fresh bamboo juice,as well as providing a technical means for the detection of other PAHs.
电喷雾萃取电离-串联质谱(EESI-MS/MS)鲜竹沥二苯并[a,h]蒽(DBA)直接分析
electrospray extraction ionization tandem mass spectrometry(EESI-MS/MS)fresh bamboo juicebenzo[k]tetraphene(DBA)direct analysis
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