Double-quantum NMR spectroscopy based on finite pulse RFDR

Yao-Hung Tseng; Yun Mou; Chung-Yuan Mou; Jerry C C Chan

doi:10.1016/j.ssnmr.2005.02.005

Double-quantum NMR spectroscopy based on finite pulse RFDR

Solid State Nucl Magn Reson. 2005 Jun;27(4):266-70. doi: 10.1016/j.ssnmr.2005.02.005.

Authors

Yao-Hung Tseng¹, Yun Mou, Chung-Yuan Mou, Jerry C C Chan

Affiliation

¹ Department of Chemistry, National Taiwan University, College of Science, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.

PMID: 15799885
DOI: 10.1016/j.ssnmr.2005.02.005

Abstract

We demonstrate that the finite pulse RFDR sequence (J. Chem. Phys. 114 (2001) 8473) can be used effectively for 31P double-quantum NMR spectroscopy at a spinning frequency of 10 kHz. The 31P NMR data measured for hydroxyapatite and octacalcium phosphate show that sizable double-quantum excitation efficiency can be obtained with the ratio of the recoupling field to spinning frequency set equal to 1.67.