Features: A computer full control of the various operating functions, the system can be monitored and automatic protection 2 anti-quartz torch center channel inlet burn-in protection 3 cooling water to stop the cycle of protection 4 argon pressure protection, abnormal working current protection 5 injection system uses imported mass flow meter for precise flow control, to ensure the stability of the injection system 6 In the RF generator with a new power control circuit, the control accuracy of less than 0.2%, ICP power output stability has been greatly improved 7 detection limit is low: ppb level 8 Precision: RSD ≤ 2.0% 9 fast analysis, analysis of more than 10 elements a minute, dynamic linear range Technical Parameters: RF generator: (1) circuit type: capacitor three-point self-excited oscillation circuit. (2) Working frequency: 40.68MHz (3) Frequency stability: <0.1% (4) Output power: 800-1200W (5) output power stability: ≤ 0.2% (6) electromagnetic field leakage intensity: 30cm away from the body electric field strength E: <2V / m Injection device: (1) output working coil diameter 25mm. 3 turns (2) torch: three concentric type. Outside diameter 20mm quartz torch (3) coaxial sprayer diameter 6mm (4) Binocular fog chamber diameter 34.5mm (5) Gas:
① plasma gas flow meter (100-1000) L / h (1.6-16L / min)
② auxiliary gas flow meter (10-100) L / h (0.16-1.66L / min)
③ carrier gas flow using mass flow meter computer control (0-5L / min) Splitter: (1) Light path: Czerny-Turner (2) Focal length: 1000mm (3) grating specifications: ion etching holographic grating, engraved density 3600 lines / mm, engraved area: 80 × 1 10mm2 (optional engraved density 2400 lines / mm, engraved area: 80 × 1 10mm2) (4) Line Dispersion Countdown: 0 26nm / mm (engraved density of 3600 lines / mm) (5) Resolution: ≤ 0.008nm (engraved density 3600 lines / mm) (6) Scanning wavelength range: 3600 lines / mm Scanning wavelength range: 1 95-500nm 2400 lines / ram Scanning wavelength range: 1 95-800nm (7) Stepper motor drive minimum step: 0 0006nm (8) Exit, incident slit: 20um (9) Mirror Specifications: (78 × 105 × 16) mm (10) Lens ф30, 1: 1 imaging (1 1) spectrometer thermostat: 32. C ± 1. C Metering device: (1) Photomultiplier tube Specifications: R21 2UH or R928 (2) PMT Negative High Voltage: 200-1000V Stability <0.05% (3) Photomultiplier tube current measurement range: 1 0-4 ~ 1 0-9 A (4) signal acquisition for the V / F exchange: 1 mV corresponds to 100Hz Instrument host parameters: Volume 1560mm (length) × 660mm (width) × 720mm (height) Weight 200kg
Features: A computer full control of the various operating functions, the system can be monitored and automatic protection 2 anti-quartz torch center channel inlet burn-in protection 3 cooling water to stop the cycle of protection 4 argon pressure protection, abnormal working current protection 5 injection system uses imported mass flow meter for precise flow control, to ensure the stability of the injection system 6 In the RF generator with a new power control circuit, the control accuracy of less than 0.2%, ICP power output stability has been greatly improved 7 detection limit is low: ppb level 8 Precision: RSD ≤ 2.0% 9 fast analysis, analysis of more than 10 elements a minute, dynamic linear range
