What Does APPI Stand For?

APPI stands for Atmospheric Pressure Photoionization

APPI, or Atmospheric Pressure Photoionization, is an analytical technique used in mass spectrometry for ionizing samples at ambient pressure. It involves the use of light to facilitate the ionization of molecules, enabling the detection of various compounds, particularly those that are difficult to ionize by traditional methods. APPI offers increased sensitivity and improved performance for analyzing complex mixtures, making it a valuable tool in fields such as environmental testing, pharmaceuticals, and biochemical research.