HPLC Method for Iodide, PVP on PVP by SIELC Technologies
High Performance Liquid Chromatography (HPLC) Method for Analysis of Iodide, PVP
Polidone Iodide (Povidone-Iodine / PVP-I)
Polidone Iodide, more commonly known as Povidone-Iodine (PVP-I), is a widely used antiseptic and disinfectant. It is a complex of iodine with polyvinylpyrrolidone (PVP), designed to provide sustained release of iodine for antimicrobial action.
☑️ Polyvinylpyrrolidone (PVP):
Polyvinylpyrrolidone (PVP), a multifunctional synthetic polymer, finds broad utility in life science and biochemical research. This water-soluble polymer serves various roles:
- Stabilizing agent
- Emulsifier
- Suspending agent
- Solubilizing agent
- Protective colloid
- Complexing agent
Its protective colloid properties are particularly valuable in stabilizing proteins, enzymes, and other biological substances, making it ideal for forming stable complexes with iodine in medical formulations.
☑️ Iodine:
Acts as the active antimicrobial agent, effective against:
- Bacteria
- Viruses
- Fungi
- Protozoa
In the complex, iodine is slowly released, providing sustained antiseptic action with reduced irritation compared to free iodine.
Iodide, PVP can be retained and analyzed using the PVP column. The analysis utilizes an step gradient method with a simple mobile phase consisting of water, acetonitrile (MeCN), and ammonium acetate. Detection is performed using ELSD.
Column | PVP, 2.1 x 50 mm, 5 µm, 100 A, dual ended |
Mobile Phase | Step gradient MeCN/H2O |
Buffer | Ammonium Acetate pH 4.0 – 20 mM |
Flow Rate | 0.4 ml/min |
Detection | ELSD |
LOD | PVP 2 ppm |
*LOD was determined for this combination of instrument, method, and analyte, and it can vary from one laboratory to another even when the same general type of analysis is being performed.
Application Column
PVP
Column Diameter: 2.1 mm
Column Length: 50 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended
PVP