Practice question
Question
Which has highest resolution?
Explanation
Resolution quantifies ability to separate two adjacent peaks, dependent on peak width and separation distance. Sharp, narrow peaks arise from minimal longitudinal diffusion, efficient mass transfer, and high column efficiency with many theoretical plates. Such peaks exhibit small baseline width, increasing resolution value calculated by difference in retention times divided by average width. Broad or overlapping peaks indicate poor efficiency, diffusion, or overloading, reducing separation. Flat peaks suggest detector saturation or poor focusing. Optimizing flow rate, particle size, and injection volume promotes sharp symmetrical peaks, essential for accurate quantification and purity assessment in analytical chromatography.