What Is TLC (Thin-Layer Chromatography) And How Is It Useful for Quick Drug Identification And Reaction Monitoring?
The principle of TLC (Thin Layer Chromatography) is based on the differential affinity of components in a mixture toward a stationary phase and a mobile phase. As the liquid solvent (mobile phase) rises through the adsorbent layer—typically silica gel (stationary phase)—by capillary action, each component interacts differently with the two phases. Substances with a stronger […]
PDA (Photo Diode Array Detector)/DAD: How to Perform HPLC Peak Purity Analysis
PDA (Photo Diode Array) Detector/DAD is a widely used technique to check the HPLC peak purity in the pharmaceutical industry due to its simplicity and fast result. In this article, you will learn about the peak purity concept, different methods for calculating peak purity, advantages, limitations, and applications of peak purity. You will also learn […]
What Is the TTC Concept and How Is It Related to the Cohort of Concern and In Silico Systems
The Threshold of Toxicological Concern (TTC) concept and in silico assessment systems are powerful tools that help reduce the need for extensive toxicity testing of potential genotoxic impurities during pharmaceutical development. Managing genotoxic impurities is one of the most challenging responsibilities for pharmaceutical scientists, requiring a solid understanding of chemistry, toxicology, and regulatory expectations. In […]
Impurities And Related Substances in Pharmaceuticals: Key Differences
Both Impurities And Related Substances degrade the quality of a pharmaceutical. Pharmaceutical impurities are unwanted substances found in a drug product, including residual starting materials, by-products, reagents, and degradation products. Related substances are a specific category of impurities that are structurally similar to the active pharmaceutical ingredient (API), typically arising from the manufacturing process or […]
What Is Difference Between pKa and pH: Learn Easily In 3 Minutes
Both pKa and pH play a vital role at every stage during drug development. pH measures the acidity of a solution, whereas pKa reflects the intrinsic strength of an acid. pH can vary depending on the concentration of hydrogen ions in a particular solution, while pKa remains a constant characteristic of a specific acid at a […]
Why 70% IPA (Isopropyl alcohol) is used in Pharma as Disinfectant: Learn Quickly With Interview FAQs
IPA (Isopropyl alcohol), or propan-2-ol(C3H8O)(C₃H₈O)(C3H8O), is a colourless, flammable liquid widely used as a solvent, disinfectant, and cleaner. Known for its rapid evaporation and ability to dissolve oils and greases, IPA is commonly employed in electronics cleaning, hand sanitisers, and industrial and household disinfection. Why 70% IPA is used in Pharma as Disinfectant? Isopropyl Alcohol […]
Cleaning Validation And Validation: Key Differences With FAQs
Both cleaning validation and validation are essential for ensuring the quality, safety, and efficacy of pharmaceutical products. Cleaning validation is a documented, scientific approach that demonstrates a cleaning process consistently removes residues to acceptable levels, proving the effectiveness of the procedure. In contrast, cleaning verification is a routine check—such as visual inspection or surface testing—to […]
Best GC Columns for Alcohol Analysis: Methanol, Ethanol, Propanol & More
Introduction Selecting GC columns for alcohol analysis needs both knowledge of chromatography and expertise. Gas Chromatography (GC) is a powerful tool for analysing volatile compounds, and it’s especially useful for detecting and quantifying short-chain alcohols like methanol, ethanol, propanol, and their isomers. These alcohols are commonly found in pharmaceuticals, beverages, cosmetics, and industrial solvents—making accurate […]
Six Sigma In Pharmaceutical Industries: Get Mastery With Interview FAQs
Discover how Six Sigma improves quality, reduces defects, and boosts efficiency in the pharmaceutical industry through data-driven process improvement and regulatory compliance
Pharmaceutical Conversions for Accurate Drug Dosing: FAQs
Pharmaceutical Conversions for Accurate Drug Dosing are vital for patient safety, as errors between metric, household, and apothecary systems can cause underdosing or toxicity. Precision in drug dosing can mean the difference between effective treatment and harmful side effects. This guide covers critical pharmaceutical conversions used in pharmacies, hospitals, and labs — presented in easy-to-read […]