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Quantitative 2D HSQC (Q-HSQC) via Suppression of J-Dependence of Polarization Transfer in NMR Spectroscopy: Application to Wood Lignin
Abstract
A quantitative method to record (1)H-(13)C correlation NMR spectra (Q-HSQC) is presented. The suppression of (1)J(CH)-dependence is achieved by modulating the polarization transfer delays of HSQC. In addition, the effect of homonuclear couplings, as well as relaxation during the pulse sequence are discussed. We developed the Q-HSQC approach for the quantitative analysis of wood lignin, a complex polymer where it has been difficult to obtain reliable data on the relative amounts of different structural units. The current method is applicable to a variety of complex mixtures, where normal 1D (1)H- and (13)C-NMR methods fail.
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Cited by
Guidelines for performing lignin-first biorefining
Abu-Omar, M. M., Barta, K., Beckham, G. T., Luterbacher, J. S., Ralph, J., Rinaldi, R., Román-Leshkov, Y., Samec, J. S. M., Sels, B. F., & Wang, F. (2021) · Energy & Environmental Science · doi:10.1039/d0ee02870c · Cited by 913
Can laccases catalyze bond cleavage in lignin?
Munk, L., Sitarz, A. K., Kalyani, D. C., Mikkelsen, J. D., & Meyer, A. S. (2015) · Biotechnology Advances · doi:10.1016/j.biotechadv.2014.12.008 · Cited by 395
Ibarra, D., Chávez, M. I., Rencoret, J., Del Río, J. C., Gutiérrez, A., Romero, J., Camarero, S., Martínez, M. J., Jiménez-Barbero, J., & Martínez, A. T. (2007) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf063728t · Cited by 139
Metadata
- Authors
- Heikkinen, S., Toikka, M. M., Karhunen, P. T., & Kilpeläinen, I. A.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-03-14
- Volume
- 125
- Issue
- 14
- Pages
- 4362-4367
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2046143330
- Cited by
- 270
- References
- 0
- FWCI
- 1.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Quantitative 2D HSQC (Q-HSQC) via Suppression of J-Dependence of Polarization Transfer in NMR Spectroscopy: Application to Wood Lignin. https://app.cochat.ai/papers/10.1021/ja029035k
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- Heikkinen, S., Toikka, M. M., Karhunen, P. T., & Kilpeläinen, I. A. (2003). Quantitative 2D HSQC (Q-HSQC) via Suppression of J-Dependence of Polarization Transfer in NMR Spectroscopy: Application to Wood Lignin. Journal of the American Chemical Society. https://doi.org/10.1021/ja029035k
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