lugol and fehling test Flashcards
1
Q
steps of lugol test?
A
Mark test tubes with substances
Add 1 drop of iodine and mix
2
Q
determine the result of fehlings test?
A
bright red: positive
deep blue: negative
3
Q
what does fehlings test detect?
A
it detects reducing sugars
4
Q
steps of fehlings test?
A
Mark test tubes with substances
Add 8 drops of fehling reactive
Heat up 1 minute and remove
5
Q
determine the result of lugol test?
A
light orange: negative
dark brown almost black: positive
6
Q
what does lugols test detect?
A
it detects starches and polysaccharides
