Wang, T. H. published the artcileAnalysis of trace volatile organic compounds in coffee by headspace concentration and gas chromatography-mass spectrometry, HPLC of Formula: 20662-83-3, the publication is Chromatographia (1983), 17(8), 411-17, database is CAplus.
A exptl. method for the anal. of trace volatile organic compounds was developed and standardized. This new technique involves headspace sampling, heart cutting, collection, and concentration of the volatiles on a porous polymer (Tenax-GC), followed by sensory evaluation and 2-dimensional gas chromatog. with flame ionization and S-sensitive flame photometric detectors and He as carrier gas. Using the modified Purge and Trap Sampler for on-line anal., the loss of organic volatile compounds, which usually occurs during sample transfer, was prevented. A number of aroma-related organic volatile compounds in coffee have been separated and identified by this technique. The method was standardized for the general needs of other related areas of aroma research.
Chromatographia published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C7H13ClNNaO5S, HPLC of Formula: 20662-83-3.
Referemce:
https://en.wikipedia.org/wiki/Oxazolidine,
Oxazolidine | C3H7NO – PubChem