{"id":66568,"date":"2025-06-30T11:58:55","date_gmt":"2025-06-30T11:58:55","guid":{"rendered":"https:\/\/biomedpharmajournal.org\/?p=66568"},"modified":"2025-07-16T04:22:52","modified_gmt":"2025-07-16T04:22:52","slug":"principles-and-applications-of-high-performance-liquid-chromatography-hplc-a-review","status":"publish","type":"post","link":"https:\/\/biomedpharmajournal.org\/staging\/vol18no2\/principles-and-applications-of-high-performance-liquid-chromatography-hplc-a-review\/","title":{"rendered":"Principles and Applications of High-Performance Liquid Chromatography (HPLC): A Review"},"content":{"rendered":"

Introduction<\/strong><\/p>\n

High-Performance Liquid Chromatography (HPLC) remains a keystone analytical method in varied scientific fields due to its high-quality for flexibility, precision, and asset in extrication, classifying, and measuring compounds in multifarious mixtures. Current research remains to enhance HPLC approaches, magnify its application scope, and benchmark its performance against other analytical devices. This review summarizes key findings from recent studies, focusing on the principles, applications, and comparative advantages of HPLC, alongside an overview of the current research landscape<\/p>\n

Core Principles of HPLC<\/strong><\/p>\n

HPLC works on the principle of separating analytes based on their differential partitioning between a mobile phase and a stationary phase packed within a cylindrical tube called column.1<\/sup> \u00a0A pump of a high-pressure forces the mobile phase containing the sample through the column. Different constituents in the sample interact with the stationary phase to variable points based on their physicochemical properties such as size, polarity, and charge, etc. This results in different movement rates; accordingly, a separation of the components occurred according to their elution from the column and detected by a suitable detector (e.g., UV, fluorescence, electrochemical ,and mass spectrometry). Significant separation modes, include reversed-phase (most common), normal-phase, ion-exchange, size-exclusion, and affinity chromatography, are selected according \u00a0to specific types of analysts.2<\/sup><\/p>\n

Briefly, HPLC operates on the principle of separating components in a mixture based on their interactions with a stationary phase and a mobile phase. Recent studies have emphasized the efficiency of HPLC in separating complex mixtures, particularly in pharmaceutical analysis.3<\/sup> In contrast, GC is limited to volatile compounds, while Capillary Electrophoresis (CE) offers advantages in speed and resolution for ionic species. 4<\/sup><\/p>\n\n\n\n
\"\"<\/td>\nFigure 1: mind map of HPLC parts (created by Monica AI)<\/strong>Click here to view Figure<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Current Advancements and Recent State of Research<\/strong><\/p>\n

The field of HPLC is endlessly progressing and the recent advancements focus on:<\/p>\n

Ultra-High-Performance Liquid Chromatography (UHPLC)<\/strong><\/p>\n

This is an important development, utilizing columns packed with sub-2 \u00b5m particles or core-shell particles. UHPLC systems work at a very high pressures (up to 1000 bar or more), leading to a dramatically reduction of the time of analysis, enhanced resolution, and higher sensitivity compared to predictable HPLC .5<\/sup><\/p>\n

Column Technology<\/strong><\/p>\n

Improvements in the stationary phase ( \u00a0column chemistry \u00a0and design) , including monolithic columns and superficially porous particles (core-shell), affect the \u00a0improvement of separation efficacy and selectivity, additionally , \u00a0to\u00a0 column lifetime which is a very important target in analysis . Hybrid particles that compromise improved the stability of pH are also noticeable. 6<\/sup><\/p>\n

Detector Enhancements<\/strong><\/p>\n

The connection of HPLC with mass spectrometry (LC-MS and LC-MS\/MS) has become essential, providing high discrimination and sensitivity for structural amplification and trace analysis. Developments in other indicators like diode array detectors (DAD) and evaporative light scattering detectors (ELSD) have also prolonged HPLC’s proficiencies. 6<\/sup><\/p>\n

Green Analytical Chemistry<\/strong><\/p>\n

There’s a growing importance on developing more environmentally friendly HPLC processes. This comprises the reduction of solvent consumption through a technique similar to UHPLC, consuming greener solvents, and exploring alternate separation mechanisms alike temperature-responsive liquid chromatography (TRLC) that can consume pure water as a mobile phase. 7<\/sup><\/p>\n

Automation and Method Advancement<\/strong><\/p>\n

Automated method advance, often retaining Quality by Design (QbD) principles and optimization, is restructuring the optimization of HPLC separations, making them faster and more potent. 8<\/sup><\/p>\n

Nano LC<\/strong><\/p>\n

The development of nano-LC systems permits for analysis of samples with very small amounts and high sensitivity, which is typically suitable in metabolomics and proteomics.9<\/sup><\/p>\n\n\n\n
\"\"<\/td>\nFigure 2: HPLC and other alternative devices (by Napkin AI)<\/strong>Click here to view Figure<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Applications of HPLC<\/strong><\/p>\n

HPLC has been applied extensively in pharmaceutical analysis, food safety, and environmental monitoring, 10<\/sup> and highlighted on the role of HPLC in detecting contaminants in food products, demonstrating its effectiveness compared to other methods. The study concluded that HPLC’s ability to analyze complex matrices makes it indispensable in ensuring food safety.<\/p>\n

Pharmaceutical Analysis<\/strong><\/p>\n

This is a major application area. HPLC is used for drug discovery, development {e.g., impurity profiling, stability testing of active pharmaceutical ingredients (APIs)}, quality control of raw materials and ended products, and also pharmacokinetic studies. It shines in analyzing multi-component dosage forms and confirming regulatory 11<\/sup><\/p>\n

Environmental Monitoring<\/strong><\/p>\n

HPLC is critical for detecting and quantifying pollutants and poisons such as pesticides, herbicides, heavy metals, and volatile organic compounds (VOCs) in water, soil, and air samples. Its ability to handle complex media makes it invaluable for ensuring and certifying environmental safety.<\/strong>12<\/sup><\/p>\n

Food Safety and Quality Analysis<\/strong><\/p>\n

HPLC is widely employed for the analysis of food components (e.g., vitamins, lipids, additives), contaminants (e.g., mycotoxins, pesticide residues, preservers), and for ensuring food quality and validity. Recent studies include HPLC-based techniques for monitoring microbial toxins.13<\/sup><\/p>\n

Biochemical and Clinical Research<\/strong><\/p>\n

HPLC is used for the analysis of biological samples, including protein and nucleic acid analysis, metabolomics, and therapeutic drug monitoring. Its high resolution is essential for separating complex biological mixtures and determination of brain neurotransmitters , 14<\/sup>separation of fatty acids,15<\/sup>\u00a0 assessment of oxidative stress such as determination of urinary 8-hydroxyguanosine, the DNA damage marker , 16<\/sup> and Co enzyme Q10 and vitamins. \u00a017<\/sup>\u00a0<\/strong><\/p>\n

Implications of Recent Studies<\/strong><\/p>\n

Recent research underscores HPLC’s persistent rank while highlighting a clear line towards more dominant and effective iterations like UHPLC. The focus on the combination of HPLC with mass spectrometry (MS ) is modernizing analytical proficiencies, particularly for complex sample analysis and trace detection ; in addition to \u00a0identification and quantitation of drug metabolites using atmospheric pressure ionization techniques. Besides, the drive towards “green” HPLC and automation reflects comprehensive trends in analytical chemistry pointed at sustainability and improved laboratory proficiency. These improvements confirm that HPLC and its interrelated techniques will remain to be critical and very important in scientific research, industrial quality control, and adjusting omission across numerous sectors.<\/p>\n

Conclusion<\/strong><\/p>\n

HPLC remains an indispensable analytical tool, offering a powerful combination of separation efficiency, versatility, and quantitative accuracy. Ongoing research continuously enhances its capabilities, particularly through the development of UHPLC, novel column technologies, advanced detection methods (especially MS), and a growing focus on sustainable and automated approaches. While other techniques have their specific advantages, HPLC’s broad applicability and continuous evolution ensure its central role in modern analytical laboratories for the foreseeable future.<\/p>\n

Acknowledgement<\/strong><\/p>\n

The author would like to thank the National Research Centre (NRC) for help and unlimited support.<\/p>\n

Funding Sources<\/strong><\/p>\n

The author(s) received no financial support for the research, authorship, and\/or publication of this article.<\/p>\n

Conflict of Interest<\/strong><\/p>\n

The author(s) do not have any conflict of interest<\/p>\n

Data Availability Statement<\/strong><\/p>\n

This statement does not apply to this article.<\/p>\n

Ethics Statement<\/strong><\/p>\n

This research did not involve human participants, animal subjects, or any material that requires ethical approval.<\/p>\n

Informed Consent Statement<\/strong><\/p>\n

This study did not involve human participants, and therefore, informed consent was not required.<\/p>\n

Clinical Trial Registration<\/strong><\/p>\n

This research does not involve any clinical trials<\/p>\n

Permission to reproduce material from other sources<\/strong><\/p>\n

Not Applicable<\/p>\n

Author Contributions<\/strong><\/p>\n

The sole author was responsible for the conceptualization, methodology, data collection, analysis, writing, and final approval of the manuscript.<\/p>\n

References<\/strong><\/p>\n

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