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Analytical chemistry
Industry: Chemistry
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Analytical chemistry
Dumas method
Chemistry; Analytical chemistry
A procedure for the determination of nitrogen in organic substances by combustion of the substance.
Einschluss thermometer
Chemistry; Analytical chemistry
All-glass, liquid-filled thermometer, temperature range _201 to _360_C, used for laboratory test work.
Eschka mixture
Chemistry; Analytical chemistry
A mixture of two parts magnesium oxide and one part anhydrous sodium carbonate; used as a fusion mixture for determining sulfur in coal.
Fehling’s reagent
Chemistry; Analytical chemistry
A solution of cupric sulfate, sodium potassium tartrate, and sodium hydroxide, used to test for the presence of reducing compounds such as sugars.
Feulgen reaction
Chemistry; Analytical chemistry
An aldehyde specific reaction based on the formation of a purple-colored compound when aldehydes react with fuchsin-sulfuric acid; deoxyribonucleic acid gives this reaction after removal of its ...
Folin solution
Chemistry; Analytical chemistry
An aqueous solution of 500 grams of ammonium sulfate, 5 grams of uranium acetate, and 6 grams of acetic acid in a volume of 1 liter; used to test for uric acid.
Foulger’s test
Chemistry; Analytical chemistry
A test for fructose in which urea, sulfuric acid, and stannous chloride are added to the solution to be tested, the solution is boiled, and in the presence of fructose a blue coloration forms.
