TY  - RPRT
TI  - Comparison of solid-phase extraction and liquid-liquid extraction for high-performance liquid chromatographic analysis of antipyrine in plasma.
AU  - M A Sarkar
AU  - H T Karnes
PY  - 1988
DO  - 10.1016/0378-4347(88)80096-3
UR  - https://pubmed.ncbi.nlm.nih.gov/3243832/
ID  - 3243832
ER  -