Separation type: Liquid Chromatography Reverse Phase.
High Performance Liquid Chromatography (HPLC) Method for Analysis of Lorazepam.
Lorazepam is a short-acting benzodiazepine medication commonly used as a sedative and anxiolytic of choice in the inpatient setting owing to its fast onset of action when administered intravenously. Lorazepam is one of the few sedative-hypnotics with a relatively clean side effect profile. Lorazepam can be retained in HPLC on Newcrom R1 reverse-phase column with the simple isocratic mobile phase consisting of acetonitrile (MeCN) and water. The analysis method can be UV detected at 275 nm.
Column | Newcrom R1, 4.6×150 mm, 5 µm, 100A |
Mobile Phase | MeCN – 35% |
Buffer | No |
Flow Rate | 1.0 ml/min |
Detection | 275 nm |
Class of Compounds | Hydrophobic, Drug |
Analyzing Compounds | Benzyl Alchohol, Lorazepam |
Application Column
Newcrom R1
The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.
Select optionsLorazepam