2.5mm HFX H13894
Probe description: PH MASDVT850W6 BL2.5 N-C/F/H
Additional components: shunt capacitor 47pF
Frequency range:
15N-2H λ/4 mode |
X MHz (ranges on bench) |
19F/1H MHz (ranges on bench) |
15N-2H/19F/1H | 86-130 | 800/850 |
Frequency range:
29Si-13C λ/4 mode |
X MHz (ranges on bench) |
19F/1H MHz (ranges on bench) |
29Si-13C/19F/1H | 169-213 | 800/850 |
Probe Test Results (Stated 90o pulse lengths are the best achieved during installation. To reduce risk of damage to the probes, facility users should use slightly lower RF nutation frequencies (i.e. longer 90o pulse lengths) were possible. Please discuss with the facility manager appropriate RF nutation frequencies for your experiments.)
without shunt capacitor:
Nuc | 90o pulse |
Pulse power |
Pulse power (W) |
Configuration | Sample | Remarks |
79Br | 2.6 | 3.6 | 127 | λ/4 | KBr | |
13C | 2.5 | 3.3 | 142 | λ/4 | Adaman. | line width 1.4Hz |
1H | 2.5 | -.35 | 193 | λ/4 | Adaman. | there is a visible 1H background |
19F | 2.2 | -0.8 | 301 | λ/4 | pvdf | background visible |
1H | 2.45 | .3 | 167 | λ/4 | Glycine | 147kHz for 50ms decoupling |
13C | 2.7 | 4 | 121 | λ/4 | Glycine (CP) | S/N 43 (ns=4) |
1H | 2.6 | 1.2 | 135 | λ/4 | pvdf (CP) | Double decoupling (cpf2f3) 80kHz/89kHz |
13C | 2.8 | 4 | 121 | λ/4 | pvdf (CP) | |
19F | 2.53 | 0.2 | 239 | λ/4 | pvdf (CP) | Double decoupling (cpf2f3) 100kHz/100kHz |
with shunt capacitor :
Nuc | 90o pulse |
Pulse power |
Pulse power (W) |
Configuration | Sample | Remarks |
1H | 2.8 | 1.2 | 135 | λ/4 | Glycine | |
15N | 3.4 | 1 | 275 | λ/4 | Glycine (CP) (enriched) | |
19F | 2.1 | -0.8 | 301 | λ/4 | pvdf | |
19F | 2.4 | 0.2 | 239 | λ/4 | pvdf |