Analytical chemistry

Analytical chemistry

Industry: Chemistry

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Analytical chemistry

Hartmann diaphragm

Chemistry; Analytical chemistry

Comparison device for positive-element-identification readings from emission spectra.

Hartman’s solution

Chemistry; Analytical chemistry

Solution of thymol, ethyl alcohol, and sulfuric ether; used for selective dentin analysis.

Hehner number

Chemistry; Analytical chemistry

Weight percent of water-insoluble fatty acids in fats and oils.

Hercules trap

Chemistry; Analytical chemistry

Water-measuring liquid trap used in aquametry when the material collected is heavier than water.

A test to distinguish between primary and secondary amines; it involves reaction of an amine with benzene disulforyl chloride in alkaline solution; primary amines give sulfonamides that are soluble ...

Hopkins-Cole reaction

Chemistry; Analytical chemistry

The appearance of a violet ring when concentrated sulfuric acid is added to a mixture that includes a protein and glyoxylic acid; however, gelatin and zein do not show the reaction.