Metal power analytical [i] pvt. Ltd. Brings internal ionizer. The company manufactures and markets analytical and metallurgical instruments. The internal ionizer has two oxide coated iridium filaments, with a radially symmetric cage assembled in a close coupled configuration. The internal ionizer software gives precision control of the ion source operating parameters including filament emission, source cage voltage and the ionizing electron energy. The internal ionizer has the confinement of electrons within the cage vicinity. It ensures the high degree of control of the ionizing environment. This internal ionizer features electron attachment ionizing option. This internal ionizer is incorporated with a technique to provide valuable information for the analysis of radical species in electronegative plasma.