| phenolphthalein |
a cathartic and pH indicator, with a range of 8.5 (colorless) to 9.0 (red).
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| phenolphthalein t. |
1. (for blood) boil a thin fecal suspension, cool, and add it to half as much reagent (made by dissolving 1 to 2 g of phenolphthalein and 25 g of potassium hydroxide in water). Add 10 g of metallic zinc and heat until decolorized. A pink color indicates the presence of blood. 2. (in urine) make the urine alkaline; a red color indicates phenolphthalein.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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