1. Color Test for Specific Amino Acids
Done by :Sahar Al-Subaie

2. Millon's Test Hopkins-Cole Test Sakaguchi Test
Outlines:
Millon's Test
Hopkins-Cole Test
Sakaguchi Test

3. Millon's Test

4. Used for detecting the presence of monohydroxybenzene derivatives
Aim:
Used for detecting the presence of monohydroxybenzene derivatives 

5. monohydroxybenzene derivatives:
Tyrosine, Tyrosine derivatives, Phenol

6. Principle:
Phenolic group of tyrosine +Millon's reagent red color (mercury salt of nitrated tyrosine)

7. Millon's reagent:
It is a solution of mercuric and mercurous ions in nitric and nitrous acids.

8. Hopkins-Cole Test

9. This test aims to detect Tryptophan (indole ring)

10. Tryptophan + Hopkins-Cole H2SO4 purple ring
Principle:
Tryptophan + Hopkins-Cole   H2SO4 purple ring

11. Sakaguchi Test

12. This test is specific for the arginine (guanidine group)
Aim:
This test is specific for the arginine (guanidine group)

13. arginine +α-Naphthol NaOBr red color
Principle:
arginine +α-Naphthol NaOBr red color

14. Thank you