Doped nanomaterial facilitates 3D printing target plate for rapid detection of alkaloids in laser desorption/ionization mass spectrometry

This work aims to rapidly detect toxic alkaloids in traditional Chinese medicines (TCM) using laser desorption ionization mass spectrometry (LDI-MS). We systematically investigated twelve nanomaterials (NMs) as matrices and found that MoS.sub.2 and defect-rich-WO.sub.3 (D-WO.sub.3) were the best NMs...

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Bibliographic Details
Published in:Analytical and Bioanalytical Chemistry 2023, Vol.415 (27), p.6825
Main Authors: Wang, Chuang, Qin, Lu-Yuan, Li, Dong-Mei, Hu, Li-Gang, Xue, Jin-Juan, Zhai, Xin-Ping, Wang, Qiang
Format: Report
Language:English
Subjects:
3D printing
Alkaloids
Analysis
Identification and classification
Mass spectrometry
Medicine, Chinese
Methods
Nanotechnology
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Summary:This work aims to rapidly detect toxic alkaloids in traditional Chinese medicines (TCM) using laser desorption ionization mass spectrometry (LDI-MS). We systematically investigated twelve nanomaterials (NMs) as matrices and found that MoS.sub.2 and defect-rich-WO.sub.3 (D-WO.sub.3) were the best NMs for alkaloid detection. MoS.sub.2 and D-WO.sub.3 can be used directly as matrices dipped onto conventional ground steel target plates. Additionally, they can be conveniently fabricated as three-dimensional (3D) NM plates, where the MoS.sub.2 or D-WO.sub.3 NM is doped into resin and formed using a 3D printing process. We obtained good quantification of alkaloids using a chemothermal compound as an internal standard and detected related alkaloids in TCM extracts, Fuzi (Aconiti Lateralis Radix Praeparata), Caowu (Aconiti Kusnezoffii Radix), Chuanwu (Aconiti Radix), and Houpo (Magnoliae Officinalis Cortex). The work enabled the advantageous "dip and measure" method, demonstrating a simple and fast LDI-MS approach that achieves clean backgrounds for alkaloid detection. The 3D NM plates also facilitated mass spectrometry imaging of alkaloids in TCMs. This method has potential practical applications in medicine and food safety. Graphical Doped nanomaterial facilitates 3D printing target plate for rapid detection of alkaloids in laser desorption/ionization mass spectrometry
ISSN:1618-2642
DOI:10.1007/s00216-023-04961-8