Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze 1-Ethylpyridinium bromide 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. This analysis was done with the mobile phase made of 20% acetonitrile and 80% water.

HPLC Method for Analysis of 1-Ethylpyridinium bromide on Newcrom AH by SIELC Technologies

1-Ethylpyridinium bromide is a type of ionic liquid with the chemical formula C₇H₁₀BrN.. An ionic liquid is a salt where the ions are poorly coordinated, resulting in these solvents being liquid below 100°C, or even at room temperature (ambient temperature). At least one ion will have a delocalized charge and one component will be organic, which prevents the formation of a stable crystal lattice.

In 1-ethylpyridinium bromide, the cation is an ethylpyridinium ion, a pyridine ring (an aromatic six-membered ring with five carbon atoms and one nitrogen atom) with an ethyl group (a two-carbon alkyl chain) attached. The anion is chloride (Cl-).

Ionic liquids, including 1-ethylpyridinium chloride, have a wide range of applications, such as in electrochemistry, catalysis, and as solvents for a variety of chemical reactions. Their properties, including melting point, viscosity, and solvation potential, can be modified by selecting different cations and anions, which gives them great versatility

1-Ethylpyridinium bromide can be retained, analyzed, on a Newcrom AH column using an isocratic analytical method with a simple mobile phase of water, Acetonitrile (MeCN), and an Ammonium formate (AmFm) ionic modifier. This analysis method can be detected with an Evaporative Light Scattering Detector (ELSD) or any other evaporative detection method (CAD, ESI-MS).

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.

High Performance Liquid Chromatography (HPLC) Method for Analysis of  1-Ethylpyridinium bromide

Condition

Description

HPLC Method for Separation of 1-Ethylpyridinium bromide, 1-Butylpyridinium Chloride on Newcrom AH by SIELC Technologies

1-Butylpyridinium chloride and 1-Ethylpyridinium bromide are types of ionic liquids. Ionic liquids are salts in which the ions are poorly coordinated, which results in these solvents being liquid below 100°C, or even at room temperature (ambient temperature). At least one ion has a delocalized charge and one component is organic, which prevents the formation of a stable crystal lattice.

1-Butylpyridinium chloride has a butyl group attached to a pyridinium ring, and its counterion is chloride (Cl-).

1-Ethylpyridinium bromide, on the other hand, has an ethyl group attached to a pyridinium ring, and its counterion is bromide (Br-).

These compounds are part of a larger class of pyridinium-based ionic liquids. They have various applications, including in electrochemistry, organic synthesis, and as solvents for polymers. Like other ionic liquids, their properties (such as melting point, viscosity, and solvation potential) can be adjusted by selecting different counterions or changing the groups attached to the pyridinium ring.

1-Butylpyridinium chloride and 1-Ethylpyridinium bromide, belong to a class of compounds known as pyridinium salts. These compounds are derived from the parent compound pyridine, which is a six-membered aromatic ring containing one nitrogen atom.

These pyridinium salts often have unique physical and chemical properties due to the presence of the charged pyridinium cation. They are commonly used in various applications, including as catalysts, ionic liquids, and electrolytes in electrochemical systems. The specific properties and applications of these compounds can vary depending on the nature of the alkyl group and the anion associated with the pyridinium cation

1-Ethylpyridinium bromide, 1-Butylpyridinium Chloride can be retained, separated, and analyzed, on a Newcrom AH column using an isocratic analytical method with a simple mobile phase of water, Acetonitrile (MeCN), and an Ammonium formate (AmFm) ionic modifier. This analysis method can be detected with an Evaporative Light Scattering Detector (ELSD) or any other evaporative detection method (CAD, ESI-MS).

Condition

Description

HPLC Method for Separation of Hydrophobic, Cationic and Anionic Surfactants on Newcrom BH by SIELC Technologies

Surfactants, also known as surface-active agents, are compounds that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, or dispersants.

They are often classified according to the charge of the polar head group:

Anionic Surfactants: These surfactants have a negative charge on their polar head group. Common examples include soap, sodium laureth sulfate, and sodium lauryl sulfate. They are commonly used in detergents and shampoos due to their ability to emulsify oils and hold dirt in suspension, so it can be rinsed away.

Cationic Surfactants: These surfactants have a positive charge on their polar head group. Examples include cetyltrimethylammonium bromide (CTAB) and benzalkonium chloride. These are often used as antiseptics and can also be found in hair conditioners because they reduce static cling.

Nonionic Surfactants: These surfactants have no charge on their polar head group. Examples include alcohol ethoxylates, nonylphenol ethoxylates, and polysorbates. Nonionic surfactants are often used in laundry and dishwasher detergents.

Sodium, which has a chemical symbol of Na, is a soft alkali metal that is highly reactive.  It is found in abundance in everyday materials like table salt, sea water, and even the Earth’s crust. It is crucial  for the body’s function and fluid balance.

1-Ethylpyridinium bromide is an ionic liquid with the chemical formula C₇H₁₀BrN. It is primarily used as a solvent at temperatures below 100^oC catalysts, and electrolytes in , It has an ethyl group attached to a pyridinium ring, and its counterion is bromide (Br-). You can find detailed UV spectra of 1-Ethylpyridinium bromide and information about its various lambda maxima by visiting the following link.

Benzalkonium chloride, also known as Zephiran or Alkyldimethylbenzylammonium chloride, is a positively charged surfactant with the chemical formula C₆H₅CH₂N(CH₃)₂RCl. It is often used as a pharmaceutical preservative and as an antiseptic. You can find detailed UV spectra of Benzalkonium chloride and information about its various lambda maxima by visiting the following link.

Cetylpyridinium Chloride, also written as CPC, is a cationic quaternary ammonium compound with the chemical formula C₂₁H₃₈ClN. It is commonly used in mouthwashes, toothpastes, lozenges, throat sprays, breath sprays, and nasal sprays due to it’s antiseptic abilities. You can find detailed UV spectra of Cetylpyridinium Chloride and information about its various lambda maxima by visiting the following link.

Chloride is typically used to refer to a compound or molecule that contains a chlorine anion: Cl^–. It is an electrolyte that is essential for bodily functions including blood pH, fluid balance, cellular functions, and more. Imbalance of chloride can indicate underlying health problems.

1-Pentanesulfonic acid is an organosulfonic acid with the chemical formula C₅H₁₂O₃S. It is primarily used in it’s sodium salt form as an anionic pairing agent. You can find detailed UV spectra of 1-Pentanesulfonic acid and information about its various lambda maxima by visiting the following link.

Lauric acid, also known as dodecanoic acid, is a saturated fatty acid. Its chemical formula is CH₃(CH₂)₁₀COOH. It is white in color, and it is a solid at room temperature with a melting point of around 44 degrees Celsius (111 degrees Fahrenheit). It is relatively inexpensive and has a long shelf life, which makes it an attractive ingredient in various commercial products. Lauric acid is found naturally in various plant and animal fats and oils, but the largest amounts of lauric acid are found in coconut oil and palm kernel oil. In these oils, lauric acid can make up to 50% of the total fat content. It is commonly used in the manufacturing of soaps and cosmetics due to its ability to form a lather when mixed with water. It is also used in food for its role in digestion and metabolic processes. It’s a medium-chain fatty acid, which means it is more easily absorbed and utilized by the body compared to long-chain fatty acids. You can find detailed UV spectra of Dodecanoic acid (Lauric acid) and information about its various lambda maxima by visiting the following link.

p-Toluenesulfonic Acid, also known as tosylic acid, which are written as PTSA, pTSA, pTsOH, and TsOH, is an organic compound with the chemical formula C₇H₈O₃S. It is used primarily in organic synthesis. You can find detailed UV spectra of p-Toluenesulfonic Acid and information about its various lambda maxima by visiting the following link.

1-Octanesulfonic acid is an anionic organosulfonic acid with the chemical formula C₈H₁₈O₃S. It is primarily used in it’s sodium salt form as an ion-pairing agent. You can find detailed UV spectra of 1-Heptanesulfonic acid and information about its various lambda maxima by visiting the following link.

Sodium dodecyl sulfate (SDS), or sodium lauryl sulfate (SLS), is a surfactant used in cleaning, hygienic, and food products. It has a chemical formula C₁₂H₂₅NaSO₄, meaning it has twelve carbon hydrophobic tail attached to a polar sulfate. At low concentrations, it is used as a whipping aid and emulsifier in foods containing egg whites. It has a similar use in pharmaceutics as an ionic solubilizer and, also, an emulsifier. In laboratory uses, it is used as a component for lysing cells during RNA extraction or DNA extraction. You can find detailed UV spectra of Sodium dodecyl sulfate and information about its various lambda maxima by visiting the following link.

Benzalkonium chloride, Cetylpyridinium Chloride, 1-Pentanesulfonic acid, Dodecanoic acid (Lauric acid), p-Toluenesulfonic Acid (PTSA), 1-Octanesulfonic acid, Sodium dodecyl sulfate, 1-Ethylpyridinium bromide can be retained, separated, and analyzed using a reverse-phase [colimn] column. The mobile phase for this method consists of water, acetonitrile (MeCN), and Ammonium formate, which serves as a buffer. This analytical method can be detected with an Evaporative Light Scattering Detector (ELSD) or any other evaporative detection method (CAD, ESI-MS).

Condition

Description