Instrument techniques refer to various methods used in scientific research and analysis to measure, manipulate, or observe physical properties. These techniques often involve specialized equipment, such as spectrometers, chromatographs, or microscopes, which help scientists gather precise data about samples. These methods are essential in fields like chemistry, biology, and physics, allowing researchers to conduct experiments and analyze results accurately. By employing instrument techniques, scientists can identify substances, determine concentrations, and study the behavior of materials under different conditions, contributing to advancements in technology and medicine.