Stability of some stationary phases in the separation of polyphenyl mixtures by gas chromatography

✍ Scribed by L. Gascó-Sánchez; F. Burriel-Martí

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 939 KB
• Volume: 36
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(66)80081-8

✦ Synopsis

During recent years it has been noted that the stationary phases in gas chromatography, during the lifetime of the columns, are subject to transformations which affect the results of quantitative analyses or the retention volumes in qualitative

ZWKdyScS. I<ELLER et d. l--3 have reviewed in detail the investigations carried out on this particular subject and have pointed out that during the conditioning process or the production of the chromatograms, the stationary phase undergoes transformations which may be caused by: impurities in tl-z carrier gas, non-volatile impurities in the stationary phase, catalytic reactions with the solid support, catalytic reactions with cleuadation products originating from the liquid phase, or polymerization of polymeric materials in the stationary phase.