SAMPLE INTRODUCTION INTO THE INDUCTIVELY COUPLED PLASMA BY THERMOSPRAY INJECTION

Thermospray vaporization, utilizing an electrically heated stainless steel capillary as a nebulization device, was studied as a means of sample introduction into the inductively coupled plasma. Vapor stripping thermospray vaporization, which included a heated spray chamber and condenser to remove excessive solvent vapor before injection into the plasma, resulted in an eight fold improvement in sensitivity. Without smooth flow injection, direct injection resulted in the introduction of flicker at flow rates above 0.1 ml/min.