Separation type: Liquid Chromatography Reverse Phase
High Performance Liquid Chromatography (HPLC) Method for Analysis of DiazepamDiazepam (Valium) is a benzodiazepine.
It is thought that benzodiazepines work by enhancing the activity of certain neurotransmitters in the brain. Diazepam increases the activity of gamma-aminobutyric acid (GABA), a special chemical that can send signals throughout the nervous system. Diazepam 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 240nm.
Column | Newcrom R1, 2.1×100 mm, 5 µm, 100A |
Mobile Phase | MeCN – 30% |
Buffer | No |
Flow Rate | 0.2 ml/min |
Detection | 240 nm |
Class of Compounds | Drug, Hydrophobic |
Analyzing Compounds | Diazepam |
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.
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