Rfpower technical parameter circuit type solid, State rf power supply, With function of automatch frequency 27. 12mhz 0. 05% frequency stability power output 800w, 1200w power output stability escaped rf radiation 30cm away from electric field, The instrument e < 2v/m. Sampling system technical parameter output working coil inner diameter 25mm torque tube three concentric, External diameter 20mm coaxial nebulizer outer diameter 6mm double barrel atomizing chamber outer diameter 34mm gas flow controls plasma argon flowmeter 100, 1000 l/h 1. 6, 16l/min auxiliary argon flowmeter 10, 100 l/h 0. 16, 1. 66l/min carrier argon flowmeter 10, 100 l/h 0. 16, 1. 66l/min pressure maintaining valve 0, 0. 4mpa cooling water temperature 20, 25 c. Rate of flow>5l/min, Hydraulic pressure>0. 1mpa spectrometer optics czerny, Turner type focal length 1000 mm grating ion beam etching holographic grating, 3600l/mm or 2400l/mm reciprocal linear dispersion 0. 26nm/mm resolution 0. 007nm 3600 line grating, 0. 015nm 2400 line grating wavelength range 3600 line grating 190nm^, 500 nm, 2400 line grating 190nm, 800 nm minimum pace of stepping motor 1 10006 nm exit slit 12pm entrance slit 10pm photoelectric converter performance photomultiplier tube specification r293/r928 negative hv on pmt 0, 1000v stability