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56 articles for “Chromatographic separations”
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Preparation of New Analytical Reagents and Study of Chromatographic Separation
Abstract: There are various types of diagnostic reagents in the laboratory, which involve many specializations in analytical chemistry and detection of pollution levels in river water and environmental pollution, as well as in the preparation of reagents that form as reagents and complexes with elements. Several techniques are shown here in an endless flow, and it is difficult Simply classify them according to a certain principle.; From a methodological point of …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 1, 2024 · pp. 44–58 Read article
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New RP-HPLC Method Development and Validation for Simultanious Estimation and Forced Degradation Studies of Gallic acid and Curcumin in Solid Dosage Form
Abstract: Objective: A New method was established for simultaneous estimation of Gallic acid and curcumin by RP-HPLC method. Methods: Chromatographic separations were performed on an Inspire (4.6 x 150mm, 5m) column with a mobile phase composition of 0.1 percent OPA buffer and Acetonitrile (30:70) delivered at a flow rate of 1 ml/min, and detection was performed on a waters HPLC auto sampler, separation module 2695 with PDA detector 2996 at wavelength …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 13, Issue 1, 2022 · pp. 7–15 Read article
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Inorganic Substances are Studied Using the Chromatographic Technique
Abstract: Inorganic analysis's use of separations is described, and the benefits of various chromatographic procedures are emphasized. Ion-exchange chromatography, solvent evaporation, columns extraction chromatography, gas chromatography of volatile metal chelates, column chromatography using chelating resins, and column chromatography using non-ionic sportive resins are some common separation techniques. Specific examples are shown to demonstrate how each of these techniques is used in analysis. A comparison of the state-ofthe-art in organic and inorganic …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 2, 2022 · pp. 29–33 Read article
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Estimation of Alogliptin and Dapagliflozin in Synthetic Mixture by RP-HPLC Method
Abstract: The primary objective of the proposed research was to develop and validate analytical methods for the simultaneous quantification of Alogliptin and Dapagliflozin in a synthetic mixture. Alogliptin and Dapagliflozin are medications used for managing diabetes, with Alogliptin inhibiting the enzyme Dipeptidyl peptidase-4 and Dapagliflozin belonging to the class of sodium-glucose cotransporter 2 inhibitors. High-performance liquid chromatography method development was conducted using a C18 column (250 mmX4.6 mm, 5 μm particle …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 2, 2024 · pp. 37–46 Read article
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HPTLC Method Development and Validation for Rabeprazole Sodium in Pharmaceutical Formulation
Abstract: Background: The most common medication for acid related disorders stands as Proton pump inhibitor (PPI) Rabeprazole Sodium. The pharmaceutical formulations require essential quality control of Rabeprazole Sodium through reliable analytical methods to maintain reliability. HPTLC provides a cost-effective rapid method for drug quantification compared to conventional HPLC methods so how HPTLC stands as an appropriate method for drug determination. Objective: The emphasis of this research project involves developing and validating …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 16, Issue 2, 2025 · pp. 18–24 Read article
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RP-HPLC Analytical Method Development and Validation for Quantitative Estimation of Metoclopramide Hydrochloride in Solid Oral Formulations
Abstract: RP-HPLC technique formulated for the numerical assessment of Metoclopramide Hydrochloride in tablet formulation has been confirmed for reliability. A C18 column facilitated the chromatographic separation using a mobile phase comprising 60:40 (v/v) potassium dihydrogen phosphate buffer: meth anol mixture. Such method was used to detect, where the retained time was 6.78 minutes and Metoclo pramide Hydrochloride produced a clear peaked at 273 nm. Results were in agreement with ICH Q2 …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 2, 2025 · pp. 07–15 Read article
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Bioanalytical Method Development and Validation for the Estimation of Levothyroxine in Human K₃EDTA Plasma by Using UPLC-MS/MS
Abstract: A rapid, sensitive, and highly selective UPLC-MS/MS method was developed and validated for the quantitative estimation of Levothyroxine in human plasma using Levothyroxine-D₃ as the internal standard (IS). Chromatographic separation was achieved on a Gemini NX-C18 column (50 × 3.0 mm, 3 µm) with a mobile phase consisting of acetonitrile and water (70:30, v/v) containing 0.015% formic acid at a flow rate of 0.5 mL/min. The total run time was …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 3, 2025 · pp. 32–46 Read article
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Photochemically Assisted LC–MS Method Development and Validation for Stability-Indicating Determination of Glasdegib in Rat Plasma
Abstract: A simple, precise, and cost-effective LC–MS method was successfully developed for the determination of Glasdegib in rat plasma. The method optimization was carried out by systematically varying key chromatographic parameters, including flow rate, injection volume, analyte concentration, and mobile phase composition, to achieve optimal sensitivity and resolution. A C18 Hypersil BDS column (150 mm × 4.6 mm, 3.5 µm particle size) was used for chromatographic separation, offering effective peak shape …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 11–20 Read article
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Status of Surfactant-Polymer Flooding
Abstract: Abstract Surfactant-polymer (SP) flooding emerged from the principle that good sweep efficiency and displacement efficiency result in good oil recovery. Its research and development was shifted to alkaline-surfactant-polymer (ASP) because higher oil recovery can be achieved from the latter. Apparently, some research-development focus is coming back to SP, because ASP has problems in practical applications, e.g., scaling and emulsion. This paper provides the status of surfactant-polymer flooding technology. It covers …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 1, 2016 · pp. 13–24 Read article
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A Developed and Validated Densitometric HPTLC method for Quantitative Analysis of Cefdinir
Abstract: A sensitive and accurate high performance thin layer chromatographic method has been developed and validated. Chromatographic separation was performed on silica gel F254 HPTLC plates, prewashed with methanol using methanol: toluene (9.5: 0.5 v/v), as solvent system. The plates were scanned densitometrically, with a deuterium lamp at 286 nm. The method was validated in accordance with the requirements of the ICH guidelines. The response to cefdinir concentration was linear in …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 1, Issue 1, 2010 · pp. 1–9 Read article
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Method development and validation of RP-HPLC for simultaneous estimation of etoricoxib and Thiocolchicosidein tablet dosage forms
Abstract: Objective: A New approach became set up for simultaneous estimation of Etoricoxib and Thiocolchicoside with the aid of RP-HPLC approach.Methods: Chromatographic separations were carried using Agilent XDB C18, 150 x 4.6 mm, 5m, column with a mobile phase composition of Sodium Phospahte buffer 3.5 pH and Acetonitrile (20:80) Were delivered at a glide price of 1ml/min and the detection changed into done the usage of waters HPLC automobile sampler, separation …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 3, 2021 Read article
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Development and Validation of a Gradient RP-HPLC Method for Quantitative Determination of Potential Manufacturing Impurities in New Drug Apronalide and Pharmaceutical Formulations
Abstract: Three impurities in apronalide drug substance were detected and quantified using a simple isocratic reverse phase HPLC method. The chromatographic separation was achieved on a Thermo Hypersil gold-CN, 100 A0 5 µm, and 250X4.6 mm using a mobile phase consisting of phosphate buffer (pH-4.6) - Methanol with UV detection at 210 nm and flow rate of 0.8 ml/min. The column temperature was maintained at 250C throughout the analysis. This method …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 1, Issue 1, 2014 · pp. 1–10 Read article
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A New RP-HPLC Method for Simultaneous Estimation of Atorvastatin and Fenofibrate in Its Bulk and Tablet Dosage Form
Abstract: Objective: A New method was established for simultaneous estimation of Atorvastatin and Fenofibrate by RP-HPLC method. Methods: Chromatographic separations were carried using Phenomenex C18 column (4.6 × 250 mm, 5 µm) column with a mobile phase composition of 0.1 M Ammonium acetate:acetonitrile (60:40) have been delivered at a flow rate of 1ml/min and the detection was carried out using waters HPLC auto sampler, separation module 2695 with PDA detector at …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 8, Issue 3, 2023 · pp. 12–18 Read article
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Simultaneous Estimation of Prazosin and Polythiazide in Bulk and Fixed Dose Combination (Tablets) by RP-HPLC
Abstract: Objective:A New method was established for simultaneous estimation of Prazosin and Polythiazide by RP-HPLC method. Methods:Chromatographic separations were carried using HPLC equipped with Auto Sampler and PDA Detector, Discovery (150 x 46 mm, 5mm) column with a mobile phase composition of Buffer and ACN: taken in the ratio 60:40 (60:40 v/v) have been delivered at a flow rate of 1ml/min and the detection was carried out using waters HPLC auto …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 66–74 Read article
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Flash Chromtography and Its Analytical Application: A Review
Abstract: Different chromatography techniques such as TLC, HPTLC, HPLC etc. are mainly used for separation of mixture. The column chromatography was use in many laboratories for separation and purification of different components. The separation of components based on partitioning or adsorption of solute on stationary to purify the liquids and for reaction control in organic synthesis.Column chromatography is a time consuming process. Flash Chromatography is a development of novel preparative liquid …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 2, 2025 · pp. 56–76 Read article
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Recent Advancements in High-Performance Liquid Chromatography: A Comparative Approach
Abstract: Modern separation science relies heavily on chromatography, which is used in all research institutes and pharmaceutical industries all around the globe. Of all the chromatography approaches, HPLC i.e. high performance liquid chromatography is the one that is most frequently used analytically. Recent improvements in chromatographic supports and liquid chromatography (LC) equipment have made rapid and incredibly effective separations possible. This summary emphasizes the key milestones and foundational advances in HPLC …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 40–48 Read article
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Stability-Indicating Rp-Hplc Development and Validation for the Estimation of Lercanidipine Hydrochloride Content in Tablet Dosage Form
Abstract: A sensitive, stability-revealing, and easy reverse-phase high-performance liquid chromatographic (RP-HPLC) technique was developed and rationalized to be in a position to determine Lercanidipine hydrochloride in ingested dosing preparations. It was separated by chromatography on a C 18 column using a mobile phase containing 10 mM potassium dihydrogen phosphate buffer and methanol (20:80, v/v; pH 4.0) at a flow rate of 1.0 mL/min and UV detected at 258 nm. The retention …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 13, Issue 1, 2026 · pp. 17–26 Read article
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Optimizing Antibiotic Analysis: A Comprehensive Guide to HPLC Process of Assessment and Quantification
Abstract: The history and uses of chromatography are thoroughly covered in this work, with an emphasis on the use of High-Pressure Liquid Chromatography (HPLC) in pharmaceutical analysis. Since its discovery by Russian botanist Mikhail Tswett in the 19th century, chromatography has undergone tremendous developments that have given rise to a variety of chromatography types and applications. The story follows the evolution historically, emphasizing Tswett's groundbreaking breakthrough in plant color classification and …
Published in International Journal of Antibiotics · Vol. 1, Issue 2, 2024 · pp. 27–44 Read article
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Advancements in Analytical Techniques and Validation Methods for Pharmaceutical Tablet Formulations Using HPTLC
Abstract: High Performance Thin Layer Chromatography (HPTLC) is a versatile analytical technique which has been effectively used for pharmaceutical quality control and cost effectively, rapidly, and high throughput analyzed tablet formulations. HPTLC is different from traditional chromatographic methods as multi sample analysis is possible in one run with low consumption of solvent, which are principles of green analytical chemistry. But existing HPTLC is limited in sensitivity, resolution and reproducibility and these …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 13, Issue 3, 2026 Read article
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Comprehensive Overview of Analytical Chemistry: Principles, Techniques, and Method Validation
Abstract: Analytical chemistry constitutes a vital discipline within the realm of scientific inquiry, facilitating the identification and measurement of components present in diverse substances and mixtures. This paper delineates the principles, methodologies, and applications of analytical chemistry, focusing on spectroscopy and chromatography techniques. Spectroscopy, including UV-Visible spectroscopy, elucidates molecular properties by analysing the absorption of electromagnetic radiation, while chromatography enables the separation of compound mixtures based on differential affinities to stationary …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 1, 2024 · pp. 14–21 Read article