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April 10, 2026Journal of the American Society for Mass Spectrometry0 citationsOpen Access

Improving MALDI Dried-Drop Analysis by Reducing Coffee Ring Effect

Minimizing the Coffee Ring Effect: Improving MALDI Dried-Drop Analysis by Sequential Spotting

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Authors

JMJoy L. MaabadiALArbil LopezJHJoseph Holbrook

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Overview

Demonstrates improved signal intensity in MALDI mass spectrometry by using sequential droplet spotting, suggesting enhanced accuracy in analyses.

Key Points

  • The aim is to minimize the coffee ring effect in MALDI mass spectrometry to improve analyte signal consistency.
  • Utilized sequential spotting of dried drops at halved and quartered solution levels.
  • Assessed changes in spot diameter and signal intensity.
  • Compared results with traditional droplet preparation methods.
  • Sequential spotting reduced the diameter of MALDI spots significantly.
  • Enhanced signal intensity was observed in comparative analyses.
  • Fewer areas of concentrated analyte ('sweet spots') and 'dead zones' were noted.

Cite This Study

Maabadi et al. (2026) studied this question.

synapsesocial.com/papers/69d895ea6c1944d70ce0719bhttps://doi.org/10.1021/jasms.6c00063
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