| CAS Number | 24634-61-5 |
|---|---|
| Molecular Formula | C6H7KO2 |
| Molecular Weight | 150.219 |
| InChI Key | CHHHXKFHOYLYRE-STWYSWDKSA-M |
| LogP | 0.650 |
| Synonyms |
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Applications:
UV-Vis Spectrum of Potassium Sorbate
July 30, 2025
If you are looking for optimized HPLC method to analyze Potassium sorbate check our HPLC Applications library
For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.
HPLC Method for Separation of Ketoconazole and Potassium Sorbate on Primesep B Column
February 7, 2023
HPLC Method for Separation of Ketoconazole and Potassium Sorbate on Primesep B by SIELC Technologies
Ketoconazole, also known as Nizoral, is an antifungal compound with the chemical formula C26H28Cl2N4O4. It is used to treat dandruff and is commonly available as a shampoo. It is applied to skin to treat other fungal infections. Ketoconazole also has antiandrogen and antiglucocorticoid properties. It works through interfering with the fungal synthesis of ergosterol and other enzymes. You can find detailed UV spectra of Ketoconazole and information about its various lambda maxima by visiting the following link.
Potassium Sorbate is a popular preservative with the chemical formula C6H7KO2. It is used in a wide variety of foods, wines, and personal-care products. It works through inhibiting molds, yeasts, and various other microbes. You can find detailed UV spectra of Potassium Sorbate and information about its various lambda maxima by visiting the following link.
Potassium sorbate, Sodium sorbate, Ketoconazole can be retained, analyzed, and separated on a Primesep B reverse-phase column using a gradient analytical method with a mobile phase consisting of Acetonitrile (MeCN), water, and Sulfuric acid as the ionic modifier. This analysis method can be UV detected at 200 nm with high resolution and peak symmetry.
Condition
| Column | Primesep B, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | Gradient MeCN – 10-50%, 10 min |
| Buffer | H2SO4 – 0.2% |
| Flow Rate | 1.0 ml/min |
| Detection | UV 200, 250 nm |
| Peak Retention Time | 6.31, 8.12 min |
Description
| Class of Compounds | Drug |
| Analyzing Compounds | Potassium sorbate, Sodium sorbate, Ketoconazole |
Application Column
Primesep B
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended
Potassium sorbate
Sodium sorbate
HPLC Method for Separation of Finasteride, Minoxidil and Potassium sorbate on Primesep 100 Column
February 3, 2023
HPLC Method for Separation of Finasteride, Minoxidil and Potassium sorbate on Primesep 100 by SIELC Technologies
Finasteride, also known as Proscar or Propecia, is a popular oral medication with the chemical formula C23H36N2O2. It is primarily used to prevent hair loss and treat enlarged prostates (also known as benign prostatic hyperplasia, BPH). On occasion, it is used to treat excessive hair growth. It works as a 5a-reductase inhibitor, which leads to reduced formation of dihydrotestosterone (DHT) from testosterone. You can find detailed UV spectra of Finasteride and information about its various lambda maxima by visiting the following link.
Minoxidil is a drug with the chemical formula C9H15N5O. It is used to treat male pattern hair loss, as well as high blood pressure, and can be taken both orally or topically. It is an adenosine 5′-triphosphate (ATP)-sensitive potassium channel opener, which leads to hyperpolarization of cell membranes.. That allows for more oxygen, blood, and nutrients to follicles. You can find detailed UV spectra of Minoxidil and information about its various lambda maxima by visiting the following link.
Potassium Sorbate is a popular preservative with the chemical formula C6H7KO2. It is used in a wide variety of foods, wines, and personal-care products. It works through inhibiting molds, yeasts, and various other microbes. You can find detailed UV spectra of Potassium Sorbate and information about its various lambda maxima by visiting the following link.
Minoxidil, Potassium sorbate, Finasteride can be retained, separated, and analyzed on a mixed-mode Primesep 100 column with a mobile phase consisting of water, Acetonitrile (MeCN), and sulfuric acid (H2SO4). This analytical method can be UV detected at 225 nm with high resolution and peak symmetry. The retention times and elution order of these compounds can be modified by altering the relative concentrations of MeCN and H2SO4.
Condition
| Column | Primesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | MeCN/H2O – 50/50% |
| Buffer | H2SO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV 225 nm |
Description
| Class of Compounds | Drug |
| Analyzing Compounds | Minoxidil, Potassium sorbate, Finasteride |
Application Column
Primesep 100
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended
Minoxidil
Potassium sorbate
HPLC Method for Analysis of Potassium Sorbate on Newcrom BH Column
May 10, 2022
HPLC Method for Potassium sorbate, Sorbic acid on Newcrom BH by SIELC Technologies
High Performance Liquid Chromatography (HPLC) Method for Analysis of Potassium sorbate, Sorbic acid.
Potassium Sorbate is a popular preservative with the chemical formula C6H7KO2. It is used in a wide variety of foods, wines, and personal-care products. It works through inhibiting molds, yeasts, and various other microbes. You can find detailed UV spectra of Potassium Sorbate and information about its various lambda maxima by visiting the following link.
Potassium sorbate, Sorbic acid can be retained and analyzed using the Newcrom BH stationary phase column. The analysis utilizes an isocratic method with a simple mobile phase consisting of water and acetonitrile (MeCN) with a sulfuric acid buffer. Detection is performed using UV.
| Column | Newcrom BH, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | MeCN – 20% |
| Buffer | H2SO4 – 0.1% |
| Flow Rate | 1.0 ml/min |
| Detection | UV 250 nm |
| Class of Compounds | Salt |
| Analyzing Compounds | Potassium sorbate, Sorbic acid |
Application Column
Newcrom BH
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended
Sorbic acid
Separation of Potassium sorbate on Newcrom R1 HPLC column
February 19, 2018
Potassium sorbate can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.
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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