Separation of selenium analogues of sulphur-containing amino acids by high-performance liquid chromatography and high-resolution gas chromatography

The historically conditioned adaptation of living organisms to chemically corresponding elements is influenced in nature by anthropogenic activities in many regions, the selenium-sulphur pair being one example of such a case. The separation of selenomethionine, selenoethionine and selenocystine was...

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Published inJournal of Chromatography A Vol. 677; no. 1; pp. 192 - 196
Main Authors Janák, Jaroslav, A.H. Billiet, Hugo, Frank, Johannes, Ch.A.M. Luyben, Karel, Hušek, Petr
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 12.08.1994
Subjects
Amino Acids, Sulfur - chemistry
Amino Acids, Sulfur - isolation & purification
Chromatography, Gas
Chromatography, High Pressure Liquid
Selenium - chemistry
Stereoisomerism
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Summary:The historically conditioned adaptation of living organisms to chemically corresponding elements is influenced in nature by anthropogenic activities in many regions, the selenium-sulphur pair being one example of such a case. The separation of selenomethionine, selenoethionine and selenocystine was studied by HPLC and high-resolution GC. Ion-exchange chromatography followed by temperature-programmed GC gives the possibility of the analytical separation of trace amounts of selenomethionine in a complex mixture of common amino acids. Diastereoisomers of selenocystine were identified by HPLC in the AccQ-Tag mode.
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ISSN:0021-9673
DOI:10.1016/0021-9673(94)80559-8