Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"stable isotope dilution assay"”.
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Chemical and physical stability of spray-dried and glass encapsulated spray-dried flavors stored below their glass transition temperatures
… percent change in benzaldehyde determined by Stable Isotope Dilution Assay-Gas Chromatography-Mass Spectrometry (SIDA-GC-MS). Benzoic acid, as the major oxidative degradation product of benzaldehyde, was also measured. Regression modeling of data was conducted using Statistical Analysis System …
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Precursors to the potent odorant wine lactone.
… A Gas Chromatography/ Mass Spectrometry (GC/MS) Stable Isotope Dilution Assay (SIDA) method was developed to analyse for this compound in grapes and wine. Chiral analysis was also carried out on wine extracts to confirm which enantiomers of menthiafolic acid and wine lactone are present in real …
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Flavor chemistry of lemon-lime carbonated beverages
… aroma compounds based on their high flavor dilution (FD) factors by aroma extract dilution analysis (AEDA). The data indicate that lemon-lime is composed of a small number of compounds (22 at the most in SM) and only a subset of these may be important since many compounds were only detected …
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Synthesis and stabilization of selected heterocyclic aroma compounds
… reagents with chloro-alkylpyrazines. Twelve isotopes, namely [2H3]-2-methylpyrazine, [2H5]-2-ethylpyrazine, [2H3]-2,3(or 6)-dimethylpyrazine, [2H3]-2,[2H3]-6-dimethylpyrazine, [2H5]-2,[2H5]-6-diethylpyrazine, [2H5]-2-ethyl-3(or 6)-methylpyrazine, 2,[2H3]-3,5-trimethylpyrazine, …