limited dynamic range of NMR ADCs, additional solvent suppression has to be performed before digitization (i.e., presaturation). If the DQ filtering is done with pulsed field gradients (PGFs) instead of phase cycling, then this suppresses ...
Advanced NMR Theory: NOESY and DQF-COSYspin kinetics - cross-relaxation derivation rate equationadvanced NMR theory - NOESY and DQF-COSYcoherence pathway selection and NMR experimentsdoi:10.1002/9780470173350.ch10JacobsenNeil E.John Wiley & Sons, Ltd...
Derivation of the Rate Equation for Cross-Relaxation Dynamic Processes and Chemical Exchange in NMR 2D NOESY and 2D ROESY Expanding Our View of Coherence: Quantum Mechanics and Spherical Operators Double-Quantum Filtered COSY (DQF-COSY) Coherence Pathway Selection in NMR Experiments The Density Matrix...
SEQUENCE-SPECIFIX 1H-NMR ASSIGNMENTS OF PROTON RESONACESSHL-I FROM THE VENOM OF THE SPIDER SELENOCOSMIA HUWENA By using two-dimensional DQF-COSY, COSY, TOCSY and NOESY spectroscopies, all the backbone protons except Cys2 and 96% of the side-chain protons are ... S Lu - 《Acta Biophysica...
一般来说,可以通过1H NMR谱、1H-1H COSY谱和TOCSY(HOHAHA)谱推出单糖上各碳上氢的化学位移,然后根据13C NMR谱和1H-13C COSY谱(HMQC谱和HSQC谱)推出碳的化学位移。但是对于不同构型的还略微不同,比如半乳糖构型,因J3.4和J4.5较小,阻碍了交叉峰的出现,可以从1H-1H COSY谱中的交叉峰推出H1,H2和H3。由于H3...
Differential 2D DQF-COSY NMR array eval YM-SDY fungal extract new natural product HTSSchroeder, F CClardy, J
Double-Tuned Isotope-Filtered DQF-COSYPractical, Experimental/ biomedical NMRmagnetisationnuclear magnetic resonance spectroscopyproteins/ human pp60 c-sfc proteinradiofrequency pulseselective suppression13C15Nproton resonancesunlabeled complexed ligandsNot Availabledoi:10.1006/jmrb.1994.1119R.X. Xu...
Sato H, Fukae K, Kaiihara Y (2008) 2D Selective-TOCSY-DQFCOSY and HSQC-TOCSY NMR experiments for assignment of a homo- geneous asparagine-linked triantennary complex type undecasac- charide. Carbohyd Res 343:1333-1345Sato, H., Fukae, K., and Kajihara, Y. (2008) 2D selective-TOCSY-...
NMRDQF-COSY脉冲梯度场t1噪声积算符脉冲相位的不稳定性是导致二维谱中的t1噪声的原因之一.本文从理论上和实验上对脉冲相位不稳定性所引起的t1噪声进行了研究.从角动量算符Ix,Iy和Iz推导中发现,由于磁化矢量在P型和N型DQF-COSY实验的脉冲梯度场中进动方向的内在差异,一部分脉冲相位误差在P型DQF-COSY实验会被重聚掉...
1H NMRSelective‐TOCSY‐DQFCOSYUnambiguous assignmentOligosaccharideIn this paper, we describe an improved 2D selectiveTOCSYCOSY experiment for the unambiguous assignment of an individual sugar component in oligosaccharides. We used a DQFCOSY with a pulsedfield gradient instead of a conventional COSY in ...