Digital Microfluidic Ionization for Real-Time Miniature Mass Spectrometry

Research output: Contribution to journalConference articlepeer-review

Abstract

This study presents a novel ion source for direct integration of digital microfluidics (DMF) with a miniature mass spectrometer (mini-MS) for online biochemical analysis. Ion source is structured with double capillary adapted to a spyhole. Key operational parameters are systematically optimized to maximize ionization efficiency and enhance signal intensity. The system shows quantitative capability and a limit-of-detection of 1 ng/mL, comparable to nanospray electrospray ionization (nanoESI). By seamlessly combining the automation and versatility of DMF with the highly sensitive MS, the proposed platform establishes a robust foundation for rapid real-time biochemical assays.

Original languageEnglish
Pages (from-to)381-384
Number of pages4
JournalInternational Conference on Solid-State Sensors, Actuators and Microsystems, Transducers
Issue number2025
DOIs
Publication statusPublished - 2025
Event23rd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2025 - Orlando, United States
Duration: 29 Jun 20253 Jul 2025

Keywords

  • analytical chemistry
  • Digital Microfluidics
  • mass spectrometry

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