Module 6 DEFINITIONS Flashcards
(9 cards)
1
Q
Carbonyl
A
Contains C=O
2
Q
Amino acid
A
Contains both NH2 and COOH (either alpha or beta)
3
Q
Optical isomerism
A
Chiral center attached to 4 different groups
4
Q
Stationary phase
A
Does not move, usually solid or liquid supported on a solid
5
Q
Mobile phase
A
Moves, usually liquid or gas
6
Q
Adsorption
A
Process by which solid silica holds different substances in the mixture to its surface
7
Q
Nuclear spin
A
Odd number of protons and neutrons so they have a spin (like electrons do!)
8
Q
Resonance
A
Nucleus absorbs energy and rapidly flips between two spin states
9
Q
Deuterated solvents
A
Where H1 replaced by H2 (H2 produces no NMR signal)
