|
Molecule
|
Coupling
|
F2–F1 (ppm)
|
Variation (%)
|
|---|
|
Cr
|
N(CH3)
|
3.02–3.02
|
1
|
|
Glx-1
|
-CH2- CH(NH3+)
|
2.09–3.75
|
4
|
|
Glx-3
| |
2.07–3.73
|
4
|
|
Glx-4
| |
2.14–3.74
|
5
|
|
Glx-6
| |
2.45–2.01
|
6
|
|
Glx-7
| |
2.31–2.28
|
6
|
|
tCho
|
(CH3)3-N + −CH2-CH2-OH
|
4.05–4.05
|
2
|
|
Fucose region and Thr
|
-CH(OH)-CH3 CH3-CH
|
(F2: 4.0–4.5, F1: 1.1–1.7)
|
10
|
|
Phe
|
-CH-(aromatic)-
|
7.33–7.33
|
7
|
|
NAA
|
-CH3
|
2.00–2.00
|
2
|
|
Cho
|
(CH3)3-N + −CH2-CH2-OH
|
3.51–4.05
|
3
|
| |
(CH3)3-N + −CH2-CH2-OH
|
3.20–3.20
|
5
|
|
mI
|
-CH(OH)-CH(OH)
|
3.63–3.29
|
5
|
| | |
3.55–3.55
|
3
|
- Abbreviations: Cho, choline; Cr, creatine; Glx 1-7, crosspeaks of glutamate + glutamine; L-COSY, localized correlated spectroscopy; mI, myo-inositol; NAA, N-acetyl aspartate; Phe, phenylalanine; ppm, parts per million; Thr, threonine. In bold are the proton groups that give rise to the crosspeak chemical shifts indicated in the third column.
