In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Quality Control of 2,4-Dimethylpyridine, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 108-47-4, name is 2,4-Dimethylpyridine. In an article£¬Which mentioned a new discovery about 108-47-4
Reduced ion mobilities of aspartame, cortisone, betamethasone, butylparaben, propylparaben and vanillin
Electrospray ionization IMS coupled to quadrupole mass spectrometry was used to calculate the reduced ion mobilities of aspartame, cortisone, betamethasone, butylparaben, propylparaben and vanillin, a set of organic compounds used as drugs or food additives using 2,6-ditert-butylpyridine (DTBP) as a chemical standard. The K0?S of these compounds in the literature are either unavailable or unreliable. The importance of using chemical standards to calibrate the ion mobility scale and the use of correct experimental temperatures to calculate ion mobilities are stressed.
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Reference£º
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis