TY  - RPRT
TI  - Perfluorosulfonated ionomer-modified polyethylene. A material for simultaneous solid-phase enrichment and enhanced precolumn dansylation of C-21 ketosteroids in human serum.
AU  - P Appelblad
AU  - A Ahmed
AU  - E Pontén
AU  - T Bäckström
AU  - K Irgum
PY  - 2001
DO  - 10.1021/ac010071w
UR  - https://pubmed.ncbi.nlm.nih.gov/11510837/
ID  - 11510837
ER  -