Physical Properties Useful in Instrumental Analysis 1. Interaction of Radiant Energy with Matter 2. Electrical or Electrochemical Properties 3. Inter phase Separation 4. Other Properties Mechanical Properties Thermal Properties Nuclear Properties EXtensive Properties1.2. Physical Properties Useful in Instrumental Analysis 1. Interaction of Radiant Energy with Matter 2. Electrical or Electrochemical Properties 3. Inter phase Separation 4. Other Properties Mechanical Properties Thermal Properties Nuclear Properties Extensive Properties