Volumetric analysis is a quantitative analytical method used to determine the concentration of a substance in a solution. This technique involves measuring the volume of a solution of known concentration, called a titrant, that reacts with the analyte, the substance being measured. The endpoint of the reaction is often indicated by a color change, which helps in calculating the concentration of the analyte. This method is widely used in various fields, including chemistry and biology, for tasks such as determining the acidity of a solution or the concentration of ions in water. Common techniques include titration, where precise measurements are crucial for accurate results.