Laser desorption sample transfer for gas chromatography/mass spectrometry

C. A. Seneviratne, S. Ghorai & K. K. Murray, Rapid Commun. Mass Spectrom. in press DOI: 10.1002/rcm.7419 RATIONALE: Ambient mass spectrometry can detect small molecules directly, but complex mixtures can be a challenge. We have developed a method that incorporates small molecule separation based on laser desorption with 80 capture on a solid-phase microextraction (SPME) […]

GUMBOS matrices of variable hydrophobicity for matrix-assisted laser desorption/ionization mass spectrometry

Al Ghafly, Siraj, Das, Regmi, Magut, Galpothdeniya, Murray, Warner, Rapid Commun. Mass Spectrom. 2014, 28, 2307; DOI: 10.1002/rcm.7027. RATIONALE Detection of hydrophobic peptides remains a major obstacle for matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). This stems from the fact that most matrices for MALDI are hydrophilic and therefore have low affinities for hydrophobic peptides. Herein, […]

Molecular weight sensing properties of ionic liquid-polymer composite films: theory and experiment

B.P. Regmi, N.C. Speller, M.J. Anderson, J.O. Brutus, Y. Merid, S. Das, B. El-Zahab, D. J. Hayes, K. K. Murray, I. M. Warner, Molecular weight sensing properties of ionic liquid-polymer composite films: theory and experiment, J. Mat. Chem. C, 2 (2014) 4867–4878. doi:10.1039/C3TC32528H. Abstract Ionic liquids (ILs) are rapidly emerging as important coating materials for […]