Sample collection refers to the process of obtaining biological or environmental samples for scientific research purposes. This can include collecting samples of blood, tissue, urine, soil, water, or any other material that may contain valuable information about a particular research question. Proper sample collection is crucial in ensuring the accuracy and reliability of research results, as contamination or improper handling can lead to misleading or inconclusive data. Sample collection methods vary depending on the type of sample being collected, but generally involve following strict protocols to preserve the integrity of the sample and minimize the risk of external factors affecting the results. Samples are typically collected in a sterile environment using specialized equipment and stored under specific conditions to maintain their stability until they can be analyzed in a laboratory setting.