Precise and rapid isotopomic analysis by 1H-13C 2D NMR: Application to triacylglycerol matrices

被引：17

作者：

Merchak, Noelle ^{[1
,2
]}

Silvestre, Virginie ^{[1
]}

Rouger, Laetitia ^{[1
]}

Giraudeau, Patrick ^{[1
,3
]}

Rizk, Toufic ^{[2
]}

Bejjani, Joseph ^{[2
]}

Akoka, Serge ^{[1
]}

机构：

[1] Univ Nantes, EBSI Team, CNRS UMR 6230, Interdisciplinary Chem Synth Anal Modelling CEISA, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France

[2] St Joseph Univ, Fac Sci, Res Unit Technol & Valorisat Agroalimentaire TVA, Lab Metrol & Isotop Fractionat, POB 11-514, Beirut 11072050, Lebanon

[3] Inst Univ France, 1 Rue Descartes, F-75005 Paris, France

来源：

TALANTA | 2016年 / 156卷

关键词：

HSQC; Isotopic profile; Metabolomic profile; Triacylglycerol; Fast 2D NMR; POLARIZATION TRANSFER; C-13; NMR; QUANTITATIVE-ANALYSIS; SPECTROSCOPY; AUTHENTICATION; METABOLITES; RESOLUTION; MIXTURES; ORIGIN;

D O I：

10.1016/j.talanta.2016.05.031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An optimized HSQC sequence was tested and applied to triacylglycerol matrices to determine their isotopic and metabolomic profiles. Spectral aliasing and non-uniform sampling approaches were used to decrease the experimental time and to improve the resolution, respectively. An excellent long-term repeatability of signal integrals was achieved enabling to perform isotopic measurements. Thirty-two commercial vegetable oils were analyzed by this methodology. The results show that this method can be used to classify oil samples according to their geographical and botanical origins. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：239 / 244

页数：6

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