Reversed phase behaviour of high molecular mass polystyrenes in ethyl acetate solvent mixtures

Autor:	Ian Maxwell Russell, P. E. Kavanagh, Ross Andrew Shalliker
Rok vydání:	1994
Předmět:	Chromatography Elution Organic Chemistry Clinical Biochemistry Analytical chemistry Ethyl acetate Reversed-phase chromatography Biochemistry Analytical Chemistry Solvent chemistry.chemical_compound chemistry Phase (matter) Polystyrene Methanol Dichloromethane
Zdroj:	Chromatographia. 39:663-667
ISSN:	1612-1112 0009-5893
DOI:	10.1007/bf02274580
Popis:	The reversed phase behaviour of high molecular mass polystyrenes was investigated on C18 bonded phase columns with ethyl acetate-methanol and ethyl acetateacetonitrile mobile phases. The results are compared with the corresponding dichloromethane mobile phases. The ethyl acetate-methanol mobile phase showed anomalous elution behaviour, similar to other previously investigated solvent combinations with methanol. The ethyl acetate-acetonitrile mobile phase showed no anomalous behaviour, increased retention and, elution over a wider composition range compared with the dichloromethane-acetonitrile system. However, resolution between adjacent molecular masses was considerably worse.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a811ba7d85e4ddfcce64ecf67098e3eb https://doi.org/10.1007/bf02274580 Zobrazit plný text záznamu Full text from SpringerLink