alpha-naphthol test
English Thesaurus
1. 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 (noun.substance)
| hypernym | : | indicator, |
| definition | : | (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction (noun.substance) |
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