The Benedict's test has several disadvantages, including its inability to specifically differentiate between different types of reducing sugars, as it reacts with all reducing sugars, not just glucose. Additionally, the test is semi-quantitative, providing only an estimate of sugar concentration rather than an exact measurement. It is also sensitive to factors like pH and temperature, which can affect the results. Lastly, the test can yield false positives due to the presence of other substances, such as certain amino acids and vitamins, that can reduce copper ions.
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Benedict's test is more sensitive than Fehling's test for detecting reducing sugars in a sample. Benedict's reagent has a lower detection threshold and is known to give more accurate results compared to Fehling's reagent.
why should you add 8 drops of urine in the Benedicts test
A negative Benedict's test would indicate that there isn't any presence of reducing sugars in that particular substance.
Yes, eggs can test positive in the Benedict's test because they contain glucose, which is a reducing sugar that reacts with the reagent in the test to form a colored precipitate.
No, surcose is a disaccharide without a hemiacetal group
Sodium carbonate is added to increase the pH of the solution.
It is normally benedicts solution. Add about 1/4 of the total sugar solution to a test tube and heat it in a hot water bath at around 50 degrees C for 5 min. For example, heat 40mL of sugar water (C12H22O11 aq ) with 10mL of Benedicts soluton (copper and sodium salts). If it is a positive test it will turn yellow.
Sarah Bosmans-Benedicts died in 1949.
Sarah Bosmans-Benedicts was born in 1861.
Most chemical supply companies sell it. You can do an internet search for "retail sale of Benedicts solution".