Chinese Journal of Magnetic Resonance >
Preparation Efficiency of Nuclear Spin Singlet State: A Comparison Among Three Pulse Sequences
Received date: 2020-03-26
Online published: 2020-06-08
The preparation and detection of the nuclear singlet state are valuable and prospective for many applications related with compound molecular analysis. In this work, a proton spin coupled system containing two H nuclei in tripeptide (Ala-Gly-Gly, AGG) was selected as research object, and singlets were prepared with three sets of different pulse sequences based on different principles. The lifetime of those singlets were measured, and the singlet preparation efficiencies of different sequences were compared. The results indicated that for the same spin coupling system of the same molecule, there is no significant difference in the lifetime of the singlet state prepared by different pulse sequences, while their preparation efficiencies could be relatively different.
Yi LI , Jia-xiang XIN , Jia-chen WANG , Da-xiu WEI , Ye-feng YAO . Preparation Efficiency of Nuclear Spin Singlet State: A Comparison Among Three Pulse Sequences[J]. Chinese Journal of Magnetic Resonance, 2021 , 38(2) : 227 -238 . DOI: 10.11938/cjmr20202832
| 1 | HATCHER P G , SPIKER E C , SZEVERENYI N M , et al. Selective preservation and origin of petroleum-forming aquatic kerogen[J]. Nature, 1983, 305 (5934): 498- 501. |
| 2 | SPYROS A , DAIS P . 31P NMR spectroscopy in food analysis[J]. Prog Nucl Magn Reson Spectrosc, 2009, 54 (3-4): 195- 207. |
| 3 | BO Y , FENG J H , XU J J , et al. High-resolution pure shift NMR spectroscopy offers better metabolite discrimination in food quality analysis[J]. Food Res Int, 2019, 125, 108574. |
| 4 | GUIMAR?ES D , NORO J , LOUREIRO A , et al. Quantification of drugs encapsulated in liposomes by 1H NMR[J]. Colloids Surf B, 2019, 179, 414- 420. |
| 5 | ALEXANDER D C , DYRBY T B , NILSSON M , et al. Imaging brain microstructure with diffusion MRI: practicality and applications[J]. NMR Biomed, 2019, 32 (4): e3841. |
| 6 | LETTAU M , LAIBLE M . 3-T high-b-value diffusion-weighted MR imaging of hyperacute ischemic stroke in the vertebrobasilar territory[J]. J Neuroradiol, 2012, 39 (4): 243- 253. |
| 7 | REYNHARDT E C , HIGH G L , VAN WYK J A . Temperature dependence of spin-spin and spin-lattice relaxation times of paramagnetic nitrogen defects in diamond[J]. J Chem Phys, 1998, 109 (19): 8471. |
| 8 | CARRAVETTA M , JOHANNESSEN O G , LEVITT M H . Beyond the T1 Limit: singlet nuclear spin states in low magnetic fields[J]. Phys Rev Lett, 2004, 92 (15): 1530031- 1530034. |
| 9 | DEVIENCE S J , WALSWORTH R L , ROSEN M S . Preparation of nuclear spin singlet states using spin-lock induced crossing[J]. Phys Rev Lett, 2013, 111 (17): 1730021- 1730025. |
| 10 | STEVANATO G , SINGHA ROY S , HILL-COUSINS J , et al. Long-lived nuclear spin states far from magnetic equivalence[J]. Phys Chem Chem Phys, 2015, 17 (8): 5913- 5922. |
| 11 | CARRAVETTA M , LEVITT M H . Long-lived nuclear spin states in high-field solution NMR[J]. J Am Chem Soc, 2004, 126 (20): 6228- 6229. |
| 12 | STEVANATO G , HILL-COUSINS J T , BROWN L J , et al. A nuclear singlet lifetime of more than one hour in room-temperature solution[J]. Angew Chem, 2015, 127 (12): 3811- 3814. |
| 13 | PILEIO G , CONCISTRè M , CARRAVETTA M , et al. Long-lived nuclear spin states in the solution NMR of four-spin systems[J]. J Magn Reson, 2006, 182 (2): 353- 357. |
| 14 | PILEIO G , CARRAVETTA M , HUGHES E , et al. The Long-lived nuclear singlet state of 15N-Nitrous oxide in solution[J]. J Am Chem Soc, 2008, 130 (38): 12582- 12583. |
| 15 | PILEIO G , LEVITT M H . J-Stabilization of singlet states in the solution NMR of multiple-spin systems[J]. J Magn Reson, 2007, 187 (1): 141- 145. |
| 16 | AYLER M C D , MARIE S , GANESAN A , et al. Determination of molecular torsion angles using nuclear singlet relaxation[J]. J Am Chem Soc, 2010, 132 (24): 8225- 8227. |
| 17 | PILEIO G , DUMEZ J N , POP I A , et al. Real-space imaging of macroscopic diffusion and slow flow by singlet tagging MRI[J]. J Magn Reson, 2015, 252, 130- 134. |
| 18 | SINGH M , SONI V K , MISHRA R , et al. Relaxation editing using long-lived states and coherences for analysis of mixtures[J]. Anal Chem, 2016, 88 (6): 3004- 3008. |
| 19 | CAVADINI S , DITTMER J , ANTONIJEVIC S , et al. Slow diffusion by singlet state NMR spectroscopy[J]. J Am Chem Soc, 2005, 127 (45): 15744- 15748. |
| 20 | PILEIO G , BOWEN S , LAUSTSEN C , et al. Recycling and imaging of nuclear singlet hyperpolarization[J]. J Am Chem Soc, 2013, 135 (13): 5084- 5088. |
| 21 | LIU H X , XIN J X , WEI D X , et al. Preparation of singlet states and analysis of influencing factors on their transfer efficiency and lifetime[J]. Chinese J Magn Reson, 2020, 37 (2): 182- 192. |
| 21 | 刘慧霞, 辛家祥, 魏达秀, 等. 核自旋单重态的制备及其转化效率和寿命的影响因素分析[J]. 波谱学杂志, 2020, 37 (2): 182- 192. |
| 22 | WEI D X , XIN J X , HU K R , et al. Preparation of long-lived states in a multi-spin system by using an optimal control method[J]. Chemphyschem, 2020, 21 (12): 1326- 1330. |
| 23 | PRAVDIVTSEV A N , KIRYUTIN A S , YURKOVSKAYA A V , et al. Robust conversion of singlet spin order in coupled spin-1/2 pairs by adiabatically ramped RF-fields[J]. J Magn Reson, 2016, 273, 56- 64. |
| 24 | AHUJA P , SARKAR R , VASOS P R , et al. Long-lived states in multiple-spin systems[J]. Chemphyschem, 2009, 10 (13): 2217- 2220. |
| 25 | TO?NER Z , VOSEGAARD T , KEHLET C , et al. Optimal control in NMR spectroscopy: Numerical implementation in SIMPSON[J]. J Magn Reson, 2009, 197 (2): 120- 134. |
| 26 | GUO H Q , XIN J X , LIU H X , et al. Preparation of long-lived nuclear singlet states in three-spin systems[J]. Chinese J Magn Reson, 2018, 35 (3): 345- 352. |
| 26 | 郭海清, 辛家祥, 刘慧霞, 等. 三自旋体系长寿命核自旋单重态的制备[J]. 波谱学杂志, 2018, 35 (3): 345- 352. |
/
| 〈 |
|
〉 |