TitleJB-1000 Inductively Coupled Plasma Optical Emission Spectroscopy
l Circuit typeself-excited oscillation circuit, fully automatic ignition and all functions are controlled by computer software (ignition, flameout, power and other parameter settings). Real-time power control, automatic matching and tuning. Constant temperature of light room.
l Working frequency40.68MHZ±0.05%
l Output power700-1600W
l Output power stability≤0.3%
l Electromagnetic field leakage radiation intensity300mm from the fuselage Electric field Intensity E:
l TorchQuartz torch with 20mm outer diameter
l Plasma flow meter100-1000 L/h,1.6-16L/min
l Auxiliary gas flow meter6-60 L/h,0.1-1L/min
l Carrier gas flow meter6-60 L/h,0.1-1L/min
l Carrier gas pressure regulator0-0.4MPa
l The instrument is equipped with a secondary argon regulator valve0.3MPa
l Photomultiplier tube specificationR212UH
l Photomultiplier tube negative high voltage200-1000V, stability
l Photomultiplier tube current measurement range10-12-10-4A
l Signal acquisition is V/F exchange1mV corresponds to 100Hz
Optical pathCzerny-Turner
Focal length1000mm
Grating specificationsion-etched holographic grating, line density 3600 lines/mm
Engraved area80×110mm, reciprocal of line dispersion rate: 0.26nm
Wavelength range190-500nm
Resolution≤0.008nm
Scanning wavelength range 3600 lines/mm Scanning wavelength range190-500nm
Stepping motor drive step distance0.0006nm
Entrance slit20µm,Exit slit: 25µm
Launch mirror specifications(78 × 105 × 16) mm
Lensф30, 1:1 imaging
l Measuring wavelength range180-500nm 3600L/mm
l Measurement accuracy (repeatability)average relative standard deviation RSD≤1%
l Measurement stabilityaverage relative standard deviation RSD≤2
l Lower detection limitsub-PPb