TY  - RPRT
TI  - Gas chromatography with surface ionization detection: a highly sensitive method for determining underivatized codeine and dihydrocodeine in body fluids.
AU  - H Seno
AU  - H Hattori
AU  - S Kurono
AU  - T Yamada
AU  - T Kumazawa
AU  - A Ishii
AU  - O Suzuki
PY  - 1995
DO  - 10.1016/0378-4347(95)00275-1
UR  - https://pubmed.ncbi.nlm.nih.gov/8611952/
ID  - 8611952
ER  -