Separation of Compounds in TCA Cycle on Primesep D Column

The citric acid cycle (tricarboxylic acid cycle, Krebs cycle) is a key process in the metabolic pathway by which all aerobic organisms generate energy. Compounds generated during TCA are hydrophilic, acidic compounds. Some of the hydrophilic acids are very strong while others are relatively weaker. All compounds have very low hydrophobicity and do not retain by the reversed-phase mechanism on the C18 or C8 HPLC columns. Citric acid and related products were separated in reversed-phase, anion-exchange mode on the Primesep D mixed-mode column. All hydrophilic, acidic compounds are well separated and demonstrate good shape. This robust method can be used for analysis of components of the TCA cycle and other highly hydrophilic compounds. This method is fully compatible with LC/MS and prep chromatography.

Condition

Column Primesep D, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmFm, pH 3.0
Flow Rate 1.0 ml/min
Detection ELSD

 

Description

Class of Compounds
Acid, Hydrophilic, Ionizable
Analyzing Compounds Sodium, Succinic acid, Malic acid, Isocitric acid, Citric acid, Fumaric acid, Maleic acid

 

Application Column

Primesep D

The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.

Select options
Application Analytes:
Citric Acid
Fumaric Acid
Isocitric Acid
Maleic Acid
Malic Acid
Sodium
Succinic Acid

Application Detection:
ELSD Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.