HPLC Method for Analysis of Polyquaternium-1 (Polidronium Chloride) Using a BIST B+ Column
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Description
· High Performance Liquid Chromatography (HPLC) Method for Analysis of Polyquaternium-1
Polyquaternium-1 , also known as Polidronium Chloride , is an antimicrobial preservative with the molecular formula C 22 H 48 Cl 3 N 3 O 6 . It is used in ophthalmic products, skincare, and hair care.
Polyquaternium-1 can be retained and analyzed using the BIST B+ stationary phase column. The analysis utilizes a gradient method with a simple mobile phase consisting of water, acetonitrile (MeCN) and a sulfuric acid buffer. Detection is performed using UV.
Note : Step gradient methods involve sudden changes in mobile phase composition, which can cause baseline disturbances and system-related signals. To ensure accurate interpretation, integration, and data processing, it is necessary to account for this effect. A blank sample (sample diluent) must be analyzed prior to the sample of interest. After all chromatograms are generated, the blank chromatogram should be subtracted from the sample chromatogram before performing integration.
*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.
Mobile Phase Conditions · If using three channels on the instrument:
Method Parameters
| Time (min) | Mobile Phase A (%) |
|---|---|
| 0 | 100 |
| 2 | 100 |
| 2.01 | 0 |
| 8 | 0 |
| 8.01 | 100 |
| 16 | 100 |
| Mobile Phase | MeCN – Gradient |
| Buffer | Sulfuric Acid |
| Flow Rate | 1.0 ml/min |
| Detection | UV 200 nm |
| Class of Compounds | Preservative |
| Analyzing Compounds | Polyquaternium-1 |