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Nylander's test is a chemical test used for detecting the presence of reducing sugars. Glucose or fructose reduces bismuth oxynitrate to bismuth under alkaline conditions. When Nylander's reagent, which consists of bismuth nitrate, potassium sodium tartrate and potassium hydroxide, is added to a solution with reducing sugars, a black precipitate of metallic bismuth is formed.

References

1. Dandekar (1 January 2004). Practicals And Viva In Medical Biochemistry. Elsevier India. p. 17. ISBN 978-81-8147-025-6.
2. S. C. Nigam; S C Nigam Omkar (1 January 2006). Experimental Animal Physiology And Biochemistry. New Age International. p. 14. ISBN 978-81-224-1464-6.
3. Srinivas B Rao. Practical Biochemistry for Medical Students. Academic Publishers. p. 19.

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