Tungstate-containing Clusters Ions in the Gas Phase by MALDI-FTICRMS

doi:10.7503/cjcu201200828

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (5): 1106.doi: 10.7503/cjcu201200828

• Analytical Chemistry • Previous Articles Next Articles

Tungstate-containing Clusters Ions in the Gas Phase by MALDI-FTICRMS

XU Rui-Feng^1,2,3, BAI Yun-Peng^1,4, LIAN Wen-Hui⁴, LIU Shu¹, SONG Feng-Rui¹, LIU Zhi-Qiang¹, LIU Shu-Ying^1,4

1. Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. University of the Chinese Academy of Sciences, Beijing 100049, China;
3. National Institute of Metrology, Beijing 100013, China;
4. Changchun University of Chinese Medicine, Changchun 130117, China

Received:2012-09-10 Online:2013-05-10 Published:2013-05-10

Abstract

Abstract:

Singly negatively charged tungstate ion clusters were produced by phosphotungstic anions using 2,5-dihydroxyacetophenone(DHAP) and 2,4,6-trihydroxyacetophenone(THAP) as matrices under matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry(MALDI-FTICR MS). Their gas-phase stability and cluster ion-molecule reactions were studied. It was found that the ion series [(PO₃)(WO₃)_n]^-, [(OH)(WO₃)_n]^- and [(C₈H₅O_x)(WO₃)_n]^- were the main ion series in the mass spectra. The composition and magic numbers of cluster ions were determined. Additionally, the series of hybrid ion clusters were produced through the reaction of matrices and tungstate in the plume of the gas phase. These results highlight the utility of the MALDI-FTICR method for obtaining novel ion clusters and also show the stability of these clusters.

Key words: Tungsten-containing ion cluster, MALDI-FTICR MS, Magic number, Matrix

CLC Number:

O657.6

TrendMD:

XU Rui-Feng, BAI Yun-Peng, LIAN Wen-Hui, LIU Shu, SONG Feng-Rui, LIU Zhi-Qiang, LIU Shu-Ying. Tungstate-containing Clusters Ions in the Gas Phase by MALDI-FTICRMS[J]. Chem. J. Chinese Universities, 2013, 34(5): 1106.

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Tungstate-containing Clusters Ions in the Gas Phase by MALDI-FTICRMS

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