
José Raúl Belmonte-SánchezUniversity of Almería | UAL · Department of Chemistry and Physics
José Raúl Belmonte-Sánchez
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8
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Publications
Publications (8)
1H NMR spectroscopy combined with chemometrics was applied for the first time for golden rum classification based on several factors as fermentation barrel, raw material, distillation method and aging. Principal component analysis (PCA) was used to assess the overall structure, and partial least square discriminant analysis (PLS-DA) was carried out...
Etidronic acid (1-hydroxyethylidene-1,1-diphosphonic acid, HEDP) is a common antioxidant additive used as detergent in the processing plants of agri-food industry for fruit and vegetable washing processes before commercialization. In the present work, and for the first time, a quick and reliable alternative to standard established methods for HEDP...
A comprehensive fingerprinting strategy for golden rums classification considering different categories such as fermentation barrel, raw material and aging is provided, using a metabolomic fingerprinting approach. A non-target fingerprinting of 30 different rums using liquid chromatography coupled with high resolution mass spectrometry (Exactive Or...
Quantitative boron-11 NMR (¹¹B qNMR) spectroscopy has been introduced for the first time as a method to determine boric acid content in commercial biocides. Validation of the method affords a limit of detection of 0.02% w/w and a limit of quantification of 0.04% w/w, which are low enough to determine boric acid in commercial biocides. Other figures...
In this study, targeted and untargeted analyses based on headspace solid phase microextraction coupled to gas chromatography-mass spectrometry (HS-SPME-GC-MS) method were developed for classifying 33 different commercial rums. Targeted analysis showed correlation of ethyl acetate and ethyl esters of carboxylic acids with aging when rums of the same...
Questions
Questions (2)
Hi. I am interested in the following: having a high resolution spectrum by NMR (e.g. a 400 MHz), I want to modify it digitally to see how the same spectrum would look like in low resolution (e.g. in a 60 MHz). I know that the sensitivity of the equipment would be lower, but I would take that into account. I've been thinking about applying some calculation on the FID to reduce the resolution obtained, but I can't find the key. If anyone can help me, I would be very grateful. Best regards. José Raúl.
Hello,
I am looking for a software that will help me determine if an analyte from my library is present based on the obtained signals and similarity of signals. It's a tentative approach, but it can be very useful in practice if you know the nature of your samples (e.g. contaminated water with medications).
Thank you in advance for any possible answers.
Best regards