Double-quantum filtered heteronuclear correlation spectroscopy under magic angle spinning

Yao Hung Tseng, Yi Ling Tsai, Tim W.T. Tim, Chun Pin Lin, Shih Hao Huang, Chung Yuan Mou, Jerry C.C. Chan

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We present a simple experimental method to extract the van Vleck second moment of a multiple-spin system under high-resolution condition. The idea is to incorporate a double-quantum (DQ) filter into the pulse sequence of heteronuclear correlation spectroscopy so that a DQ excitation profile can be obtained by measuring a series of 2D spectra. The effects of spinning frequency and proton decoupling are demonstrated on the measurements of two model compounds, viz. hydroxyapatite and brushite. Based on the results obtained for the model compounds, the P-31 homonuclear second moment of the apatite component in rat dentin is characterized. The method is generally suited for the study of bone, enamel and dentin.

Original languageEnglish
Pages (from-to)55-61
Number of pages7
JournalSolid State Nuclear Magnetic Resonance
Issue number1
Publication statusPublished - Feb 2007
Externally publishedYes


  • Brushite
  • Calcium phosphate
  • Dentin
  • Double-quantum filter
  • HAp
  • NMR
  • Second moment
  • Teeth

ASJC Scopus subject areas

  • Radiation
  • General Chemistry
  • Nuclear and High Energy Physics
  • Instrumentation


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