31P MAS NMR spectra were collected at 161.97 MHz (magnetic field of 9.4 T) on a Bruker AV-400-WB with a 4 mm triple channel probe with ZrO rotors, Kel-F-plug at room temperature and 10 kHz slew rate. A single π/2 pulse of 60 kHz and spectral width of 100 kHz was used in the direct irradiation tests. The relaxation time was 40 seconds and samples were accumulated for 128 scans. In the CP-MAS tests a 1H excitation pulse of 3 μs, 3 ms contact time, 100 kHz spectral width, ppm 15 decoupling at 80 kHz were used, and samples accumulated with 512 scans were used. The relaxation time was 5 seconds. In both cases, (NH4)H2PO4 (ADP) at 0.81 ppm was used as secondary reference with respect to H3PO4 (85%) as the primary reference. The chemical shift resolution was ± 0.2 ppm.
Kel f plug
Manufactured by Bruker
The Kel-F-plug is a laboratory equipment item manufactured by Bruker. It serves as a plug or sealing component, typically used in various laboratory applications.
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2 protocols using kel f plug
1
Solid-State 31P NMR Characterization
Check if the same lab product or an alternative is used in the 5 most similar protocols
31P MAS NMR spectra were collected at 161.97 MHz (magnetic field of 9.4 T) on a Bruker AV-400-WB with a 4 mm triple channel probe with ZrO rotors, Kel-F-plug at room temperature and 10 kHz slew rate. A single π/2 pulse of 60 kHz and spectral width of 100 kHz was used in the direct irradiation tests. The relaxation time was 40 seconds and samples were accumulated for 128 scans. In the CP-MAS tests a 1H excitation pulse of 3 μs, 3 ms contact time, 100 kHz spectral width, ppm 15 decoupling at 80 kHz were used, and samples accumulated with 512 scans were used. The relaxation time was 5 seconds. In both cases, (NH4)H2PO4 (ADP) at 0.81 ppm was used as secondary reference with respect to H3PO4 (85%) as the primary reference. The chemical shift resolution was ± 0.2 ppm.
+ Expand
31P MAS NMR spectra were collected at 161.97 MHz (magnetic field of 9.4 T) on a Bruker AV-400-WB with a 4 mm triple channel probe with ZrO rotors, Kel-F-plug at room temperature and 10 kHz slew rate. A single π/2 pulse of 60 kHz and spectral width of 100 kHz was used in the direct irradiation tests. The relaxation time was 40 seconds and samples were accumulated for 128 scans. In the CP-MAS tests a 1H excitation pulse of 3 μs, 3 ms contact time, 100 kHz spectral width, ppm 15 decoupling at 80 kHz were used, and samples accumulated with 512 scans were used. The relaxation time was 5 seconds. In both cases, (NH4)H2PO4 (ADP) at 0.81 ppm was used as secondary reference with respect to H3PO4 (85%) as the primary reference. The chemical shift resolution was ± 0.2 ppm.
2
Solid-State 31P NMR Characterization
Check if the same lab product or an alternative is used in the 5 most similar protocols
31P MAS NMR spectra were collected at 161.97 MHz (magnetic field of 9.4 T) on a Bruker AV-400-WB with a 4 mm triple channel probe with ZrO rotors, Kel-F-plug at room temperature and 10 kHz slew rate. A single π/2 pulse of 60 kHz and spectral width of 100 kHz was used in the direct irradiation tests. The relaxation time was 40 seconds and samples were accumulated for 128 scans. In the CP-MAS tests a 1H excitation pulse of 3 μs, 3 ms contact time, 100 kHz spectral width, ppm 15 decoupling at 80 kHz were used, and samples accumulated with 512 scans were used. The relaxation time was 5 seconds. In both cases, (NH4)H2PO4 (ADP) at 0.81 ppm was used as secondary reference with respect to H3PO4 (85%) as the primary reference. The chemical shift resolution was ± 0.2 ppm.
+ Expand
31P MAS NMR spectra were collected at 161.97 MHz (magnetic field of 9.4 T) on a Bruker AV-400-WB with a 4 mm triple channel probe with ZrO rotors, Kel-F-plug at room temperature and 10 kHz slew rate. A single π/2 pulse of 60 kHz and spectral width of 100 kHz was used in the direct irradiation tests. The relaxation time was 40 seconds and samples were accumulated for 128 scans. In the CP-MAS tests a 1H excitation pulse of 3 μs, 3 ms contact time, 100 kHz spectral width, ppm 15 decoupling at 80 kHz were used, and samples accumulated with 512 scans were used. The relaxation time was 5 seconds. In both cases, (NH4)H2PO4 (ADP) at 0.81 ppm was used as secondary reference with respect to H3PO4 (85%) as the primary reference. The chemical shift resolution was ± 0.2 ppm.
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