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Definition of Alpha-naphthol test
1. Noun. Biochemical indicator of the presence of carbohydrates in a solution; if carbohydrates are present a violet ring is formed by reaction with alpha-naphthol in the presence of sulfuric acid.
Lexicographical Neighbors of Alpha-naphthol Test
Literary usage of Alpha-naphthol test
Below you will find example usage of this term as found in modern and/or classical literature:
1. Modern Urinology; a System of Urine Analysis and Diagnosis by Clifford Mitchell (1912)
"It is well to obtain a negative reaction for nitrates and nitrites with the
diphenylamine test before making the alpha-naphthol test. ..."
2. Text-book of Medical and Pharmaceutical Chemistry by Elias Hudson Bartley (1899)
"The test seems reliable. 10. Phenyl-hydrazin Test.—For the details of this test
see glucose, in part v of this book. it. alpha-naphthol test. ..."
3. Manual of Physiological and Clinical Chemistry by Elias [Hudson] Bartley (1904)
"Albumin must be removed. The test seems reliable. 10. Phenyl-hydrazin Test.
— For the details of this test see glucose, on p. 14. 11. alpha-naphthol test. ..."
4. A Laboratory Manual of Physiological Chemistry by Elbert William Rockwood (1919)
"... sodium hydroxide and boil for several minutes. The liquid turns yellow; as a
test for glucose it is not very satisfactory. 39. The alpha-naphthol test ..."
5. A Manual of Modern Gastric Methods: Chemical, Physical, and Therapeutical by Alexander Lockhart Gillespie, John Thomson (1899)
"Alpha-Naphthol test for free Hydrochloric Acid. Winkler * recommends alpha-naphthol
as a test for the presence of free hydrochloric acid. ..."
6. A Guide to the practical examination of urine. For the use of physicians and by James Tyson (1891)
"... 181 Fat in urine, 21, 143 Fehling's solution, 72 Fibrin, 66 Fruit-sugar, 105
Fungi, 224 Globulin, 56 Glucose, 68 alpha naphthol test for, 93 by Roberts' ..."
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