Sentence examples for unambiguous compound from inspiring English sources
Although scytonemin has been detected with both laser excitation wavelengths the variations in relative band intensity strongly alters the appearance of the Raman spectra and this could make it difficult for unambiguous compound identification.
If available, liquid chromatography coupled to a mass spectrometer results in specific detection of individual organic acids and unambiguous compound confirmation in contrast to refractive index (RI), ultraviolet (UV), or electrochemical detection.
Therefore, in metabolomics studies, acquisition of at least one 2D NMR experiment for unambiguous compound identification, such as a H H TOCSY or C H HSQC-TOCSY experiment, is highly beneficial when combined querying against the customized H(C -TOCCATA database.
Raman spectroscopy confirms the presence of Si44−, in addition to XRD results, and allows the complete and unambiguous identification of the compound NaSi.
In general, this procedure involves generating an unambiguous identifier of a compound independent of the tautomeric form that was used as the input.
The key advantages of this new method are: firstly, all compounds are analyzed on a single instrument run, using both positive and negative ionization modes and secondly, all compounds are analyzed under high-resolution full-scan mode, which allowed accurate mass measurements for unambiguous identification of all compounds.
These compounds caused unambiguous NMR chemical shift perturbation (Figure 3A).
Most compounds showed unambiguous evidence of a favorable interaction, but several did not.
Accurate mass measurements enabled the unambiguous distinction of all compounds as two of them differed by less than 0.05 U.
Even though APCI-MS could not provide unambiguous identification of aroma compounds, literature data and comparison with other data enabled the tentative identification of many peaks.
First, we must be able to identify potential sources for these compounds, demanding unambiguous chemical parity between modern and ancient structures.
