Quantification of high-resolution (1)H NMR spectra from rat brain extracts.
Quantification of high-resolution (1)H NMR spectra from rat brain extracts.
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DOI:
10.1021/ac102285c
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发表时间:
2011-01-01
影响因子:
7.4
通讯作者:
Behar, Kevin L.
中科院分区:
文献类型:
--
作者:
de Graaf, Robin A.;Chowdhury, Golam M. I.;Behar, Kevin L.
Extracting quantitative information about absolute concentrations from high-resolution 1H NMR spectra of complex mixtures such as brain extracts remains challenging. Partial overlap of resonances complicates integration, whereas simple line fitting algorithms cannot accommodate the spectral complexity of coupled spin-systems. Here it is shown that high-resolution 1H NMR spectra of rat brain extracts from 11 distinct brain regions can be reproducibly quantified using a basis set of 29 compounds. The basis set is simulated with the density matrix formalism using complete prior knowledge of chemical shifts and scalar couplings. A crucial aspect to obtain reproducible results was the inclusion of a line shape distortion common among all 73 resonances of the 29 compounds. All metabolites could be quantified with <10% and <3% inter- and intrasubject variation, respectively.
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影响因子:
2.2
作者:
Mlynarik, Vladimir;Cudalbu, Cristina;Gruetter, Rolf
通讯作者:
Gruetter, Rolf
DOI:
10.1016/s0169-7439(98)00110-5
发表时间:
1998-12-14
影响因子:
3.9
作者:
Holmes, E;Nicholson, JK;Connelly, J
通讯作者:
Connelly, J
影响因子:
2.2
作者:
Pfeuffer, J;Tkác, I;Gruetter, R
通讯作者:
Gruetter, R
影响因子:
7.4
作者:
De Meyer, Tim;Sinnaeve, Davy;Van Criekinge, Wim
通讯作者:
Van Criekinge, Wim
DOI:
10.1006/jmra.1994.1008
发表时间:
1994-01-01
期刊:
JOURNAL OF MAGNETIC RESONANCE SERIES A
影响因子:
--
作者:
SMITH, SA;LEVANTE, TO;ERNST, RR
通讯作者:
ERNST, RR