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Statin-like principles of bergamot fruit (Citrus bergamia): isolation of 3-hydroxymethylglutaryl flavonoid glycosides.
The 3-hydroxy-3-methylglutaryl neohesperidosides of hesperetin and naringenin were isolated and detected from the fruits of bergamot and the structures were determined by spectroscopic and chemical methods.
Assay of Sudan I contamination of foodstuff by atmospheric pressure chemical ionization tandem mass spectrometry and isotope dilution.
- L. Di Donna, L. Maiuolo, F. Mazzotti, D. De Luca, G. Sindona
- ChemistryAnalytical chemistry
- 14 July 2004
A modern approach for assaying the content of this colorant in foodstuff down to a limit of a few tens of parts per billion, using the isotope dilution method combined with APCI tandem mass spectrometry.
Assay of tyrosol and hydroxytyrosol in olive oil by tandem mass spectrometry and isotope dilution method.
Identification of H2CCC as a diffuse interstellar band carrier
We present strong evidence that the broad, diffuse interstellar bands (DIBs) at 4881 and 5450 A are caused by the B 1 B1 ← X 1 A1 transition of H2CCC (l-C3H2). The large widths of the bands are due…
Comprehensive assay of flavanones in citrus juices and beverages by UHPLC-ESI-MS/MS and derivatization chemistry.
Determination of elemental mercury by cavity ringdown spectrometry
Cold vapor cavity ringdown spectroscopy has been successfully applied to the detection of elemental mercury. Using an absorption cell 0.18 m in length, detection limits of 0.027 and 0.12 ng were…
Assay of the set of all Sudan azodye (I, II, III, IV, and Para-Red) contaminating agents by liquid chromatography-tandem mass spectrometry and isotope dilution methodology.
- F. Mazzotti, L. Di Donna, G. Sindona
- ChemistryJournal of agricultural and food chemistry
- 9 January 2008
A high-throughput mass spectrometric method is presented for the simultaneous detection of Sudan I, II, III, IV, and Para-Red azodyes in foodstuff using deuterium-labeled internal standards and atmospheric pressure chemical ionization in a triple-quadrupole instrument.
Secondary metabolites of Olea europaea leaves as markers for the discrimination of cultivars and cultivation zones by multivariate analysis.
Determination of ketosteroid hormones in meat by liquid chromatography tandem mass spectrometry and derivatization chemistry
- L. Di Donna, H. Benabdelkamel, F. Mazzotti
- ChemistryAnalytical and Bioanalytical Chemistry
- 27 May 2015
The accuracy of the method was established by evaluating artificially spiked samples, obtaining values in the range 90–110 %, making this method competitive with current hormone assay methods.
Mass spectrometry-based proteomic approach in Oenococcus oeni enological starter.
A simple procedure is proposed for selective protein solubilization and trypsin digestion, followed by off-line liquid chromatography-matrix assisted laser desorption ionization mass spectrometry (LC-MALDI MS) analysis of Oenococcus oeni bacterium, which points out 13 peptides having one point mutation from 9 proteins.