Maxwell, RJLightfield, ARStolker, AAM2025-03-132025-03-131995https://rivm.openrepository.com/handle/10029/635635An SPE column-teflon sleeve assembly for in-line retention during supercritical fluid extraction of analytes from biological matrices.ArticleJ High Resolut Chromatogr 1995; 18:231-42025-03-13