1.
J Chromatogr
; 458: 217-23, 1988 Dec 23.
Artigo
em Inglês
| MEDLINE
| ID: mdl-3235637
RESUMO
A method is proposed for the determination of pterins in urine without clean-up by reversed-phase high-performance liquid chromatography on a C18 column previously conditioned with cetyltrimethylammonium bromide. Other endogenous compounds are retained in the column, preventing interference. Xanthopterin, neopterin, isoxanthopterin, monapterin, biopterin, 6-hydroxymethylpterin, pterin and lumazine can be determined. Retention and separation mechanisms are discussed.