TY  - RPRT
TI  - Ionic liquid-based aqueous two-phase system, a sample pretreatment procedure prior to high-performance liquid chromatography of opium alkaloids.
AU  - Shehong Li
AU  - Chiyang He
AU  - Huwei Liu
AU  - Kean Li
AU  - Feng Liu
PY  - 2005
DO  - 10.1016/j.jchromb.2005.08.005
UR  - https://pubmed.ncbi.nlm.nih.gov/16143571/
ID  - 16143571
ER  -