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Deuterated chloroform is a general purpose NMR solvent, as it is not very chemically reactive and unlikely to exchange its deuterium with its solute, [9] and its low boiling point allows for easy sample recovery. It, however, it is incompatible with strongly basic, nucleophilic, or reducing analytes, including many organometallic compounds.
The dried drop method is the simplest of deposition methods. The matrix and sample solution are mixed together and then a small drop of the mixture is placed on the sample probe surface and allowed to dry, thus crystallizing. The sandwich method involves depositing a layer of matrix onto the surface of the probe and allowing it to dry.
Deuterated chloroform. Deuterated solvents are a group of compounds where one or more hydrogen atoms are substituted by deuterium atoms. These isotopologues of common solvents are often used in nuclear magnetic resonance spectroscopy. [1]
Chloroform: organic compound; often used as CDCl3 (deuterated chloroform) as a solvent for NMR spectroscopy and as a general solvent. Chromic acid: a strong and corrosive oxidising agent; an intermediate in chromium plating Chromium trioxide: the acidic anhydride of chromic acid; mainly used in chrome-plating Collins reagent
Vacuum drying is the mass transfer operation in which the moisture present in a substance, usually a wet solid, is removed by means of creating a vacuum.. In chemical processing industries like food processing, pharmacology, agriculture, and textiles, drying is an essential unit operation to remove moisture. [1]
The spray drying technique was first described in 1860 with the first spray dryer instrument patented by Samuel Percy in 1872. [citation needed] With time, the spray drying method grew in popularity, at first mainly for milk production in the 1920s and during World War II, when there was a need to reduce the weight and volume of food and other materials.
Chloroform, [10] or trichloromethane (often abbreviated as TCM), is an organochloride with the formula C H Cl 3 and a common solvent.It is a volatile, colorless, sweet-smelling, dense liquid produced on a large scale as a precursor to refrigerants and PTFE. [11]
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