Thermionic sodium ion source versus corona discharge in detection of alkaloids using ion mobility spectrometry

被引：4

作者：

Asadi, Masood ^{[1
]}

Valadbeigi, Younes ^{[2
]}

Tabrizchi, Mahmoud ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran

[2] Imam Khomeini Int Univ, Fac Sci, Dept Chem, POB 288, Qazvin, Iran

来源：

INTERNATIONAL JOURNAL FOR ION MOBILITY SPECTROMETRY | 2019年 / 22卷 / 02期

关键词：

Thermal ionization; Ion mobility spectrometry; Sodium ion; Alkaloids; Ionization source; IONIZATION SOURCE;

D O I：

10.1007/s12127-019-00249-9

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

IMS spectra obtained by using a thermal ionization sodium ion (SI) source and a corona discharge (CD) source were compared in terms of resolution, selectivity and sensitivity. The reactant ion peak (RIP) for the SI source is a single narrow peak which appears in a shorter drift time compared to the main RIP of the CD ion source, (H2O)(n)H3O+. Comparison of the IMS spectra of selected alkaloids obtained with both the CD and the SI sources shows that the latter exhibits simpler pattern, including a narrow single peak for each compound, well separated from other samples peak. Furthermore, the product ion peaks (PIP) in the SI source appeared at higher drift times leading to higher peak-to-peak resolution. However, the sodium ion source is less sensitive to the selected alkaloids compared to the CD ion source.

引用

页码：51 / 58

页数：8

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