Abstract
A study was made of single-column analysis of cyclic oxazolidinone derivatives of protein amino acids. Employment of Chromosorb 750 as the most inert chromatographic support and hydrogen as the carrier gas in a packed column improved only slightly the elution of the most polar (histidine, arginine) and the heaviest (tryptophan, cystine) amino acid derivatives. Similar results were obtained with a support-coated (OV-17) open tubular column. The best analytical performance was afforded by wide-bore open tubular columns either with methylphenylsilicone liquid coated on the glass walls or with methylsilicone gum chemically bonded to fused silica. The total analysis time for all protein members was approximately 10 min.
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