Electrospray techniques are methods used to produce fine droplets or aerosols from a liquid solution. This process involves applying a high voltage to the liquid, which creates an electric field that causes the liquid to break up into tiny droplets. These droplets can then be analyzed or used in various applications, such as in mass spectrometry for identifying chemical compounds. The technique is particularly useful in fields like pharmaceuticals and biotechnology, where precise control over droplet size and distribution is essential. By adjusting parameters like voltage and flow rate, researchers can optimize the process for specific needs, enhancing the efficiency of sample analysis or drug delivery.