Angiotensin-receptor blockers are often considered adequately efficacious in reducing blood pressure. By accepting the current regulatory requirements for an analytical method development, a reversed phase high performance liquid chromatographic method for routine analysis of Azilsartan has been developed. The optimized method was achieved using unisol C-18 (3μm, 4.6×150mm) coloumn with mobile phase consisting of mixture acetonitrile and methonal (90:10v/v) with a flow rate of 0.8ml/min at 249nm. The Linear concentration range is 2-10μg/ml. The detection and quantitation limit was found to be 0.45μg/ml. And the detection limit was found to be 0.149μg/ml. There are no interfering peaks under performed degradation conditions. The optimized method was validated according to ICH guidelines.
In recent years, size exclusion chromatography (SEC) has gained valuable and impactable recognition among various chromatographic techniques. Also addressed as other names, viz. gel permeation chromatography, steric-exclusion chromatography, etc., SEC is typically taken into consideration for the fractionation and molecular weight determination of biomolecules and large macromolecules (proteins and polymers) using porous particles. A homogenous mixture of molecules dispersed in the mobile phase is introduced to the chromatographic column, which provides a solid support in the form of microscopic beads (the stationary phase). The beads act as “sieves” and purify small molecules, which become temporarily trapped inside the pores. Some of the advantages that SEC offers over other chromatographic techniques are short analysis time, no sample loss, good sensitivity, and requirement for less amount of mobile phase. In the proposed manuscript, we have deliberated various proteomic applications of size exclusion chromatography, which include the isolation of extracellular vesicles in cancer, isolation of human synovial fluid, separation of monoclonal antibodies, as well as several tandem techniques, such as deep glycoproteomic analysis using SEC-LC-MS/MS, analysis of mammalian polysomes in cells and tissues using tandem MS-SEC, SEC-SWATH-MS profiling of the proteome with a focus on complexity, etc.
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