Quantitative determination of solerone and sotolon in flor sherries by two-dimensional-capillary GC

✍ Scribed by Martin, Bruno ;Etiévant, Patrick

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 254 KB
• Volume: 14
• Category: Article
• ISSN: 0935-6304
• DOI: 10.1002/jhrc.1240140213

✦ Synopsis

Acknowledgements

peak in all thc chromatograms which exhibits the same behavior.

In the NMR spectra, the ratio of the phosphine oxide and phosphinate ester peaks appears to change depending on whether the oxidation is in moist air, or in dry oxygen. This is not supported by the SFC evidence, and it is possible that processes other than oxidation are taking place.

4 Conclusion

Tri(n-alky1)phosphines and their oxidation products have been successfully separated using solvent-free injection for SFC on a poly(cyanopropy1)siloxane column. This method of analysis also resolved the parent organophosphine into components, which may be isomers. There is no interaction between tri(n-alkyljphosphine and carbon dioxide over the time scale of chromatographic analysis, at 165 "C and 10 MPa or 80 "C and 30 MPa. Capillary SFC has been shown as a good method of detecting impurities in tri(n-alky1)phosphine.