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Laboratory Atomic Absorption Spectrophotometer Flame Graphite Furnace Atomic Absorption Spectrometer Metal Spectrometer AA6820
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Product descriptions from the supplier   1. Instrument working conditions
1.1. Ambient temperature: 5℃ ~ 35℃
1.2. Relative humidity: 20% ~ 85%
1.3. Power supply: AC220V±10%, 50/60HZ
2. Instrument technical specifications
2.1. Analytical methods: air/acetylene flame, graphite furnace, hydride - atomic absorption
2.2. Background correction: self-absorption and deuterium lamp can be used to correct 1A background
2.3. Optical system
2.3.1. Monochromator: Phase elimination C-T monochromator, grating 1800 lines /mm
2.3.2. Wavelength range: 190 ~ 900nm
2.3.3. Resolution: Distinguish manganese 279.5nm and 279.8nm double lines (peak-valley energy between the two lines ≤ 40%)
2.3.4. Spectrum bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm, 6 automatic switching
2.3.5.Wavelength fast scanning: 2000nm/min
2.3.6. Wavelength accuracy: ±0.1nm
2.3.7. Wavelength repeatability: 0.01nm
2.3.8. Baseline stability: 0.002A/30min (Cu, 324.7nm)
2.3.9.High light path energy: copper element negative high voltage less than 170V (lamp current 2.5mA slit 0.2nm)
2.4. Automatic turret element light device
2.4.1. Can install 8 element lights, pulse current lighting, 4 lights can be preheated at the same time
2.4.2. Lamp position adjustment: lamp position is automatically set and automatically fine-tuned
2.5. Atomizer
Flame atomizer
2.5.1. Atomizer: Efficient and easy to disassemble quartz glass atomizer
2.5.2. Atomization chamber: equipped with explosion-proof plug device to ensure safe combustion
2.5.3. Combustion head: auxiliary gas strong cooling titanium alloy combustion head
2.5.4. Ignition mode: ignition or flameout is controlled by workstation software
2.5.5. Setting of combustion conditions: Mass flow controller is automatically set
2.5.6. Detection limit of elements: Cu≤0.004ug/ml
2.5.7 Relative standard deviation: RSD≤0.5%
2.5.8. Characteristic concentration: Copper Cu, better than 0.025ug/ml/1%
2.5.9. Static baseline drift: Copper Cu, better than 0.002A/30min
2.5.10. Dynamic baseline drift: Copper Cu, better than 0.004A/30min
2.5.11. Gas and air road safety monitoring device:
Air pressure monitoring and acetylene leakage automatic monitoring function, when there is an abnormal automatic flameout and turn off acetylene gas.
2.5.12. Equipped with dual optical path photosensitive tube detection device:
The flame monitor automatically turns off the acetylene flow when the flame is too bright or goes out.
Graphite furnace atomizer
2.5.13. Precision: RSD≤2%
2.5.14. Characteristic quantity: Cadmium Cd, better than 0.5×10-12g
2.5.15. Detection limit: Cadmium Cd, better than 2.0×10-12g
2.5.16. Maximum heating speed: 2000℃/ SEC
2.5.17. Atomization temperature: 3000℃
2.5.18. Graphite furnace visual system: workstation embedded graphite furnace visual system
2.6. Sampling system
2.6.1. Sample number: 85
2.6.2. Sample volume: 1μL-50μL
2.6.3. Injection accuracy: When the volume is ≥10μL, better than 1%
2.6.4. Minimum increment: 1μL
2.7. Workstation operating software
2.7.1. Software full counter-control operation instrument;
2.7.2. The software comes with expert analysis database, analysis parameters can be automatically loaded;
2.7.3. Automatic online collection of sample measurement information and calculation of analysis results;
2.7.4. Concentration mode: absorbance, concentration, percentage concentration;
2.7.5. Concentration calculation methods: standard curve method, standard addition method;
2.7.6. Statistical methods of data: mean value, standard deviation, relative deviation and working curve are linearly correlated;
2.7.7.Method, data, log database storage, regular automatic archiving, audit tracking;
2.7.8. Task reservation function, one-click creation, automatic sequence execution;
2.7.9. Define multi-condition historical data statistics to facilitate users to query, analyze and compare signals;
2.7.10. User-defined shortcut menu to facilitate users to quickly use familiar functions
2.7.11. Workstation memory function, recover to the current user interface after login, adapt to different personnel operating habits;
2.7.12.The instrument can be connected to the remote cloud, and the instrument can be controlled anytime and anywhere to check the running status;
2.7.13. Instrument diagnosis information is uploaded to the cloud platform, and the software automatically updates and pushes it online.
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