1.1Plasma excitation and impedance matching using automatic technology, low reflected power, standing-wave ratio (SWR) is less than 1.25. 1.2 Axial viewing position, longer torch is used to reduce the fluctuation of the tail flame, the cold cone is placed at the tail flame to prevent the tail flame from entering the viewing hole. 1.3 Argon Flows: MFC on nebulizer gas, plasma gas, auxiliary gas. All gas flows under computer control. 1.4 Work coil has a mall inner diamete, high energy conversion efficiency (1000W), and when the carrier gas flow is 0.7L/min, the robustness is greater than 9. 1.5 One wavelength scan is performed before sample measurement, which can avoid wavelength shift after long-term measurement to affect measurement accuracy. 1.6 Upgraded spectrum database, data information up to 50,000. 1.7 Interference spectral line automatic filter function 1.8 Automatic serial communication 1.9 Analysis speed: The fastest speed is more than 5 elements per min. 1.10 Scan range?190~500nm 1.11 Scanning mode: Turbo vortex rod, driven by computer-controlled stepper motor, minimum scan step is 0.0006nm. 1.12 Wavelength error?0.005nm 1.13 Repeatability??0.005nm 1.14 Correlation coefficient??0.9995 1.15 Precision:RSD?1.0% 1.16 Stability: RSD?2.0% 1.17 Measuring range?Ultramicro to constant quantity 1.18 Detection limits? Zn?0.003mg/L Ni ?0.010mg/L Mn ?0.002mg/L Cr ?0.007mg/L Cu ?0.007mg/L Ba?0.001mg/L 1.19 Measurement method?sequential measurement of single element or multielement 1.20 Power?2.5KW(maximum power)

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