Pharmacy Freak Editorial Team

Introduction: Sample preparation is a critical step before high-performance liquid chromatography (HPLC) analysis, directly influencing accuracy, precision, and instrument performance. This blog provides focused multiple-choice questions on sample preparation techniques commonly required for HPLC in pharmaceutical analysis, including filtration, centrifugation, protein precipitation, liquid–liquid extraction, solid-phase extraction (SPE), dilution/reconstitution strategies, solvent compatibility, and sample stability. The … Read more

Introduction: HPLC troubleshooting techniques MCQs With Answer is designed for M.Pharm students preparing for Advanced Instrumental Analysis. This concise quiz set focuses on practical problems encountered in liquid chromatography — from baseline instability, pressure fluctuations and peak distortion to detector and column-related faults. Each question targets diagnostic reasoning and corrective actions used in routine laboratory … Read more

Introduction: This quiz set on HPLC solvents and selection criteria is designed for M.Pharm students preparing for Advanced Instrumental Analysis (MPA 201T). It covers solvent properties, eluotropic strength, UV cutoffs, viscosity and backpressure effects, buffer compatibility, and detector considerations with a focus on practical method development and troubleshooting. Questions emphasize reasoning about solvent choice for … Read more

This blog post presents a focused set of multiple-choice questions on Gradient HPLC principles tailored for M.Pharm students preparing for Advanced Instrumental Analysis (MPA 201T). The questions emphasize key theoretical and practical aspects of gradient elution — including gradient types, solvent strength, gradient slope, dwell volume, retention models, gradient reproducibility, and optimization strategies. Each question … Read more

Introduction: Column problems and troubleshooting are central skills for any M.Pharm student working with chromatographic techniques such as HPLC and GC. This blog focuses on common column-related issues — for example, increased backpressure, peak tailing, fronting, loss of resolution, ghost peaks, and column bleed — and practical troubleshooting strategies. You will learn to diagnose causes … Read more

Introduction: This quiz collection on HPLC columns and their classification is designed specifically for M.Pharm students studying Advanced Instrumental Analysis (MPA 201T). It covers essential concepts such as stationary phase chemistries (C18, phenyl, cyano), particle technologies (fully porous, superficially porous/core–shell, monolithic), pore sizes, end-capping, speciality columns (ion-exchange, size-exclusion, HILIC, chiral), column dimensions and pressure considerations. … Read more

HPLC detectors MCQs With Answer This quiz set focuses on detectors used in High Performance Liquid Chromatography, tailored for M.Pharm students studying Advanced Instrumental Analysis (MPA 201T). It covers principles, detector types (UV/Vis, DAD/PDA, fluorescence, refractive index, ELSD, CAD, electrochemical, conductivity, and MS interfaces), practical considerations such as sensitivity, selectivity, gradient compatibility, flow cell effects, … Read more

Introduction: HPLC injectors MCQs With Answer is a focused question set designed for M.Pharm students studying Advanced Instrumental Analysis (MPA 201T). This collection emphasizes the principles, mechanics, and troubleshooting of sample introduction systems in High-Performance Liquid Chromatography (HPLC). Topics covered include manual and autosampler injectors, sample loops, valve positions, dead volume, split/partial/full-loop techniques, carryover, pressure … Read more

This blog presents targeted MCQs with answers on HPLC pumps and their types specifically for M. Pharm students studying Advanced Instrumental Analysis (MPA 201T). The questions explore pump principles, components, and operation modes such as isocratic and gradient delivery, plus common pump designs like reciprocating piston, dual‑piston and quaternary/binary mixers. Emphasis is placed on performance … Read more

Introduction: This set of MCQs on Band broadening and its causes is designed specifically for M.Pharm students studying Advanced Instrumental Analysis (MPA 201T). It reviews key theoretical concepts—such as the van Deemter equation, longitudinal diffusion, eddy diffusion, and mass-transfer resistance—along with practical contributors to peak spreading like column packing, particle size, extra‑column effects, injection and … Read more