VUV photon-induced ionization/dissociation of antipyrine and propyphenazone: Mass spectrometric and theoretical insights

Deng L.; Zhang L.; Guo H.; Jia L.; Pan Y.; Yin H.; Qi F.

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VUV photon-induced ionization/dissociation of antipyrine and propyphenazone: Mass spectrometric and theoretical insights

机译：VUV光子诱导的安替比林和苯丙氮酮的电离/解离：质谱和理论见解

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Two analgesic and anti-inflammatory drugs, antipyrine and propyphenazone, were investigated with infrared laser desorption/tunable synchrotron vacuumultraviolet (VUV)photoionizationmass spectrometry (IRLD/VUVPIMS) andtheoretical calculations.Mass spectra of the two drugsweremeasured at various photon energies. Fragment ionswere gradually produced as photon energy increases. The structural assignment of the dominant fragment ions was supported by the results from a commercial electron impact time-of-flight mass spectrometer (EI-TOF MS). Primary fragmentation pathways were established from experimental observations combiningwith theoretical calculations.Methyl radical elimination is acommonfragmentation pathwayfortwoanalytes.However, forpropyphenazonecation, isopropylgroupelimination toformantipyrine cation is another competitive pathway.

机译：通过红外激光解吸/可调同步加速真空紫外光电离电离质谱（IRLD / VUVPIMS）和理论计算研究了两种镇痛和抗炎药安替比林和丙基苯并zone。在不同的光子能量下测量了这两种药物的质谱。随着光子能量的增加，碎片离子逐渐产生。商用电子碰撞飞行时间质谱仪（EI-TOF MS）的结果支持了主要碎片离子的结构分配。通过实验观察和理论计算建立了主要的裂解途径。甲基消除是两种分析物的常见裂解途径。然而，对于苯丙苯phen嗪阳离子，异丙基团消除形成安替比林阳离子是另一种竞争途径。

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《Journal of mass spectrometry: JMS》 |2010年第7期|共6页
作者
Deng L.; Zhang L.; Guo H.; Jia L.; Pan Y.; Yin H.; Qi F.;
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正文语种 eng
中图分类分析化学;
关键词
Antipyrine; Fragmentation pathway; Laser desorption; Propyphenazone; VUV photoionization mass spectrometry;

机译：安替比林;裂解途径;激光解吸;扑热息痛;VUV光电离质谱;

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机译：VUV光子诱导的安替比林和苯丙氮酮的电离/解离：质谱和理论见解
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VUV photon-induced ionization/dissociation of antipyrine and propyphenazone: Mass spectrometric and theoretical insights

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