ZCA-1000SFG atomic absorption spectrophotometer

1、 Performance indicators
1. Optical system
Wavelength range: 190nm-900nm, automatically adjustable
Grating line density: 1800 lines/mm
Monochromator: aberration reducing Czerny Turner type monochromator
Spectral bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0nm, with multiple automatic switching modes
Wavelength accuracy: ± 0.10nm
Wavelength repeatability: 0.05nm
Baseline drift: static 0.002A/30min, dynamic 0.006A/30min
Detector: Wide spectral range photomultiplier tube
Resolution: Able to distinguish the dual lines of 279.5nm and 279.8nm in the manganese lamp, and the energy of the valley between the two spectral lines should be less than 20%
2. Light source system
Lamp holder: 3 lamp holders
Lamp power supply method: 400Hz square wave pulse
Lamp current regulation range: 2-10mA average current
3. Atomization system
Detection limit (Cu): 0.003g/ml
Burner: 100mm all titanium metal burner Precision: RSD 0.5%
Spray: metal sheathed high-efficiency glass spray
Atomization chamber: corrosion-resistant all plastic atomization chamber
Safety measures: Equipped with multiple automatic safety protection functions, acetylene leakage alarm, automatic shutdown system, flameless (graphite furnace) analysis method, detection limit (Cd): 4pg hydride generator atomic absorption method
4. Flame analysis method
Measurement methods: standard curve method, standard addition method, interpolation method. Concentration calculation method: automatic fitting of working curve, automatic correction of sensitivity, automatic calculation of concentration and content.
Repeated measurement times: 1~99 times, automatically calculate the mean, content, standard deviation, and relative standard deviation.
Result printing: Print test data or final analysis report. The results can be exported as a Word worksheet.
Software environment: Windows XP/Win7 operating system, professional Chinese software
5. Flameless (graphite furnace) analysis method
Measurement method: graphite furnace peak height method, graphite furnace peak area method Background correction: deuterium lamp background correction greater than 60 times, self absorption buckle background correction greater than 60 times
Repeated measurement times: 1-30 times, calculate the average, and provide the standard deviation and relative standard deviation
Result printing: Print test data or final analysis report. The results can be exported as an Excel worksheet.
Software environment: Windows XP/Windows 7 operating system, professional Chinese software
2、 Standard configuration
1. Host
2. Low noise oil-free air compressor
3. Hollow cathode lamp
4. Operating software
3、 Design Features of ZCA-1000SFG Standard Atomic Absorption Spectrophotometer
1. Total reflection optical system, full band chromatic aberration reduction, automatic wavelength scanning, and automatic peak searching.
2. It has a deuterium lamp buckle background and a self-priming buckle background.
3. The uniquely designed all titanium burner ensures smooth combustion and fast thermal equilibrium speed.
4. Automatically adjust negative high voltage, lamp current, element lamp position to maximize energy, and automatically protect against gas leakage and flameout. 3 hollow cathode lamp stands. Automatic control system, capable of automatically scanning wavelengths. One element lamp is working, and the other two element lamps are preheated.
5. Graphite furnace heating: Users can freely set the heating curve according to their needs.
Advanced graphite furnace constant power temperature control design: achieving uniform and consistent temperature of graphite tubes, maintaining good dynamic stability of graphite tube working temperature, and ensuring accuracy of analysis.