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Analytical chemistry
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Analytical chemistry
Korshun method
Chemistry; Analytical chemistry
Microdetermination of carbon and hydrogen in organic compounds; the sample is prepyrolyzed (cracked) in a shortage of oxygen, then oxidized in an excess of oxygen.
Kovat’s retention indexes
Chemistry; Analytical chemistry
Procedure to identify compounds in gas chromatography; the behavior of a compound is indicated by its position on a scale of normal alkane values (for example, methane _ 100, ethane_ 200).
Lundegardh vaporizer
Chemistry; Analytical chemistry
A device used for emission flame photometry in which a compressed air aspirator vaporizes the solution within a chamber; smaller droplets are carried into the fuel-gas stream and to the burner ...
Marsh test
Chemistry; Analytical chemistry
A test for the presence of arsenic in a compound; the substance to be tested is mixed with granular zinc, and dilute hydrochloric acid is added to the mixture; gaseous arsine forms, which decomposes ...
Mohr titration
Chemistry; Analytical chemistry
Titration with silver nitrate to determine the concentration of chlorides in a solution; silver chromate precipitation is the end-point indicator.
Nessler’s reagent
Chemistry; Analytical chemistry
Mercuric iodide-potassium iodide solution, used to analyze for small amounts of ammonia.
Nessler tubes
Chemistry; Analytical chemistry
Standardized glass tubes for filling with standard solution colors for visual color comparison with similar tubes filled with solution samples.
