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赤外線マトリックス支援レーザー脱離エレクトロスプレーイオン化することにより、全身質量分析イメージング(IR-MALDESI)
Journal JoVE
Bio-ingénierie
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Journal JoVE Bio-ingénierie
Whole-body Mass Spectrometry Imaging by Infrared Matrix-assisted Laser Desorption Electrospray Ionization (IR-MALDESI)
DOI:

10:47 min

March 24, 2016

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Chapitres

  • 00:05Titre
  • 00:57Tissue Preparation
  • 02:46IR-MALDESI Preparation/Calibration
  • 04:09Deposition of Ice Matrix
  • 05:29Mass Spectrometry Imaging Data Acquisition
  • 09:07Results: Spatial Distribution of Lipids in Whole Mouse Preparations
  • 09:52Conclusion

Summary

Traduction automatique

A mass spectrometry imaging (MSI) source operated at atmospheric pressure was developed by coupling mid-infrared laser desorption and electrospray post-ionization. Exogenous ice matrix was used as the energy-absorbing matrix to facilitate resonant desorption of tissue-related material. This manuscript provides a step-by-step protocol for performing IR-MALDESI MSI of whole-body neonatal mouse.

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