Table 1.
Sample coil description | Etched Cell OD | Sample profile | 1H sensitivity (SNR) | 1H resolution (1% CHCl3/CO(CD3)2) (50%/.55%/.11%) | Mass Sensitivity (Sm) EB1 |
---|---|---|---|---|---|
20-μL zero-susceptibility rectangular wire solenoidal coil. | 3.5 mm | stretched ellipsoidal | 86:1 (100 mM sucrose); 68:3 (EB1) | 0.8/30/45 Hz | 417 |
20-μL copper coil (fluorinert ) | 3.5 mm | stretched ellipsoidal | 60:1 (EB1) | 3/70/135 Hz2 | 368 |
1-μL zero- susceptibility round wire solenoidal coil | 1.8 mm | ellipsoidal | 3:1 (EB1) | 1.3/78/90 Hz | 370 |
1-μL copper coil (fluorinert) | 1.8 mm | ellipsoidal | 2.8:1 (EB1) | 0.8/60/80 Hz | 340 |
EB: 0.1% ethyl-benzene quartet;
resolution was compromised by the need to increase the coil’s inter-turn spacing for tuning purposes.