2009,20,1731–1738)©2009AmericanSocietyforMassSpectrometry F luorescencespectroscopyiswidelyappliedfor sensitiveprobingofthestructureofmatterdueto itshighspecificitytothemicroenvironment.It canprovideseveraltypesofinformationonalarge varietyofsamples,suchassolidsurfaces,biological ...
Of the three structural models, the ensemble of globular structures for the nuclear form had the lowest energy (Supplementary Fig. S12). Thus, we took this low-energy ensemble to represent the structure of a globular dimer model (Fig. 4b and Supplementary Fig. S10a). The average Ω ...
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This molecule is an oxidized form of taxifolin. The other peaks at 8.79, 10.73, 11.17, and 14.77 min did not give fragment ions that would enable their characterization. However, the last metabolite at 14.77 min (m/z 281.2484 [C18H34O2–H]-Δ 1.23 ppm) was assigned as oleic acid ...
[59], 3,4-DHPEA-EDA, the main phenolic compound of olive leaves was detected in cold-water extracts of the leaves, in the form of an aglycone derivative. Carnosic acid is a diterpene compound commonly found in sage and rosemary [60], which has not been previously reported in mushroom ...
For each chip, the SPME module used a bottleneck structure which is located on the upstream of the ESI emitters to implement the packing; and the size of the bottleneck structure ensured that the particles can be retained. Comparing to other structure for SPME particles retaining, such ...
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(2%v/v) overnight at room temperature to form a 2 mg/mL concentration solution, and pH was adjusted to 5 using 1 M NaOH. Sodium tripolyphosphate (TPP) was dissolved in water to reach a final concentration of 1 mg/mL. The next day, the SBE solution was prepared by dissolving in 95%...
Ultimately, the TPC was calculated with the standard curve and expressed in the form of gallic acid equivalents (GAE) per gram (mg GAE/g) of the freeze-dried sample weight. 2.3.2. Determination of the Total Flavonoid Content (TFC) The TFC in kiwifruit peel, pulp and core extracts was ...
Although the tandem mass spectrometer provides excellent specificity when operated in the MRM mode, complete resolution of chromatographic peaks corresponding to isomers, isobars and/or isotopomers is desirable for satisfactory quantitation of amino acids in their native or derivatized form [14,19,22,49...