Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 676525-77-2, is researched, Molecular C40H40F6IrN4P, about Metal contamination in matrix-assisted laser desorption/ionization samples prepared with the ‘vortex’ solvent-free method, the main research direction is MALDI mass spectrometry metal contamination vortex solvent free preparation.Safety of [Ir(dtbbpy)(ppy)2]PF6.
The quality of MALDI (matrix-assisted laser desorption/ionization) mass spectra can be dramatically affected by sample preparation In the ‘vortex’ method of sample preparation, the sample and matrix are finely ground and intimately mixed by placing the matrix, analyte, and two metal-plated steel shot in a 4 mL glass vial and agitating vigorously for a few minutes using a vortex mixer. The authors have discovered that, with certain matrixes and analytes, metal plating from the shot can produce distinct signals in mass spectra from vortex-prepared samples. These signals can be strong enough to potentially cause confusion in interpreting a spectrum.
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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”