Results 21 to 30 of about 220,097 (316)

Fast screening of turkish olive oil by NMR spectroscopy for geographical determination and discrimination purposes

open access: yesGrasas y Aceites, 2014
The main goal of this study is to rapidly screen olive oil contents by acquiring one dimensional (1D) 1H NMR spectra of 38 samples from Turkey, The Middle East, and Libya.
S. Ok
doaj   +1 more source

A Gallium-based Chiral Solvating Agent Enables the Use of 1H NMR Spectroscopy to Differentiate Chiral Alcohols

open access: yesiScience, 2019
Summary: In situ, direct 1H NMR chiral analysis by using chiral solvating agents is a convenient and efficient analytical technique. Here we developed a Ga-based chiral anionic metal complex for 1H NMR chiral analysis of alcohols.
Sumin Jang, Hyunwoo Kim
doaj   +1 more source

1H NMR Spectroscopy Profiling of Metabolic Reprogramming of Chinese Hamster Ovary Cells upon a Temperature Shift during Culture [PDF]

open access: yes, 2013
We report an NMR based approach to determine the metabolic reprogramming of Chinese hamster ovary cells upon a temperature shift during culture by investigating the extracellular cell culture media and intracellular metabolome of CHOK1 and CHO-S cells ...
Mark J. Howard (443860)   +14 more
core   +1 more source

Combining NMR spectroscopy and organic synthesis : from small building blocks to large biomolecules [PDF]

open access: yes, 2014
Detailed knowledge of the structure of bio molecules with atomic resolution is essential for the understanding of their function. Moreover the identification and quantification of their dynamic processes are important, as they are the origin of molecular
Gsellinger, Heiko
core   +1 more source

NMR analysis of (1S, 1aR, 6aR)-2’, 3’, 6, 6a-tetrahydrospiro cycloprop a indene-1(1aH), 1’- 1H indene [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
The aldol condensation product of 1H-indan-1-one, (2E)-2-(2,3-dihydro-1H-in den-1-ylidene)-2,3-dihydro-1H-inden-1-one, subjected to Huang–Minlon reduction conditions was shown, via 1D and 2D NMR analysis, to be a mixture of (1S,1aR,6aR)-2’,3’,6,6a ...
Spiteller Peter   +2 more
doaj   +1 more source

Spectral Analysis of Glucose-Based Chiral N-heterocyclic Carbene Precursors

open access: yesChinese Journal of Magnetic Resonance, 2018
1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3-butylimidazolium bromide (compound 2) was synthesized with 1-bromobutane and 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl) imidazole (compound 1), which is a glucose-derived chiral N-heterocyclic carbene ...
ZHOU Zhong-gao   +4 more
doaj   +1 more source

Development of identification test methods for triptorelin acetate and goserelin acetate substances using NMR spectroscopy

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2019
The work is a continuation of the research on the use of NMR spectroscopy in the quality control of natural peptide hormone-based active substances and their synthetic analogues.
S. V Moiseev   +2 more
doaj   +1 more source

High-resolution solid state NMR experiments for the characterization of calcium phosphate biomaterials and biominerals [PDF]

open access: yes, 2011
Calcium phosphates form a vast family of biominerals, which have attracted much attention in fields like biology, medicine, and materials science, to name a few.
Hanna, John   +55 more
core   +1 more source

Application of NMR Screening Methods with 19F Detection to Fluorinated Compounds Bound to Proteins

open access: yesMagnetochemistry, 2017
The combinational use of one-dimensional (1D) NMR-based screening techniques with 1H and 19F detections were applied to a human serum albumin–diflunisal complex.
Kazuo Furihata   +2 more
doaj   +1 more source

Analysis of small molecule mixtures by super-resolved 1H NMR spectroscopy

open access: yes, 2022
Analysis of small molecules is essential to metabolomics, natural products, drug discovery, food technology and many other areas of interest. Current barriers preclude from identifying the constituent molecules in a mixture as overlapping clusters of NMR
Aritro, Sinha Roy, Madhur, Srivastava
core   +1 more source

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