Continuous flow infrared matrix-assisted laser desorption/ionization with a solvent matrix
1Emory University, Department of Chemistry, 1515 Pierce Drive, Atlanta, GA 30322, USA.
Abstract:
Continuous flow matrix-assisted laser desorption/ionization (MALDI) was demonstrated with infrared laser desorption and an ethanol matrix. A capillary was used to deliver an analyte solution dissolved in ethanol to a metal frit embedded in a sample stage. Typical flow rates were 1.7&mgr;L/min. An optical parametric oscillator tuned to 2.8&mgr;m was used for desorption and ionization, and mass analysis was achieved with a 1 m linear time-of-flight mass spectrometer. Flow injection studies were performed with low picomolar quantities of insulin and myoglobin in solutions containing 0.1 to 1.0% glycerol in ethanol. Copyright 2000 John Wiley & Sons, Ltd.
More Related Videos
10:47Whole-body Mass Spectrometry Imaging by Infrared Matrix-assisted Laser Desorption Electrospray Ionization (IR-MALDESI)
Published on: March 24, 2016
07:12An Efficient Sample Preparation Method to Enhance Carbohydrate Ion Signals in Matrix-assisted Laser Desorption/Ionization Mass Spectrometry
Published on: July 29, 2018
Related Concept Videos
Electrospray Ionization (ESI) Mass Spectrometry
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
MALDI-TOF Mass Spectrometry
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Matrix-Assisted Laser Desorption Ionization (MALDI)
