Dilution is a concept related to the decrease in the concentration of a substance in a mixture, typically through the addition of a solvent or a diluent. This process is commonly used in scientific research, particularly in fields such as chemistry, biology, and environmental science, to manipulate the concentration of a sample to achieve a desired level for analysis or experimentation. Dilution is often performed to make a sample more manageable for analysis, to reduce the intensity of a substance's effects, or to create standard solutions for calibration purposes. It is an important technique in many scientific disciplines and is essential for accurate and reliable measurement and analysis.