Fuh, Ming-Ren Determination of flunitrazepam and 7-aminoflunitrazepam in human urine by on-line solid phase extraction liquid chromatography-electrospray-tandem mass spectrometry. [electronic resource] - Talanta Jun 2007 - 1329-35 p. digital Publication Type: Journal Article ISSN: 1873-3573 Standard No.: 10.1016/j.talanta.2007.01.040 doi