TY  - RPRT
TI  - Post-column derivatization in high-performance liquid chromatography using the air segmentation principle: application to digitalis glycosides.
AU  - J C Gfeller
AU  - G Frey
AU  - R W Frei
PY  - 1977
DO  - 10.1016/s0021-9673(01)92044-8
UR  - https://pubmed.ncbi.nlm.nih.gov/914926/
ID  - 914926
ER  -