AAS-2630 ATOMIC ABSORPTION SPECTROPHOTOMETER(AAS)

Features

1. Using PC for automatic controlling & data processing;
2. Integrated design of the flame atomizer and the graphite furnace atomizer, both of which can be automatically switched;
3. Eight lamps automatic switch, automatically adjust supply and optimization of the beam position, pre-set optimization hollow cathode lamp working conditions for multi elemental detection convenient
4. Automatic ignition, automatic flow rate setting, turn off automatic protection, automatically adjusts negative high voltage, lamp current;
5. Automatic control wavelength scanning, automatic peak search completed within 30 seconds, Auto-zero, the gas flow is set automatically
6. Advanced and reliable the safety protection system, full range of safety protection for the operator
7. Hydride generator for option
8. The excellent quality of the optical system, optical system suspension design, the vibration and the environmental temperature changes can not affect the instrument performance
9. Convenient and reliable utility software assistant, comprehensive support the windows platform
10. The new design of the flame atomizer and high sensitivity of the graphite furnace.

Performance Index
Optical system

1. Wavelength: 190nm-900nm
2. Monochromator:  C-T, aberration
3. Wavelength accuracy:  ±0.15nm
4. Wavelength repeatability: <0.10nm
5. Baseline shift:  0.004A/30min
6. Detector: high sensitivity photomultiplier
7. Spectrum bandwidth: 0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm for option
8. Dispersion element: plane diffraction grating, 1800article/nm, scoring area 40x40mm2 
9. Resolution ratio: in 0,2nm spectral bandwidth, the half width of the measuring spectral line no more than0.2nm±0.02nm

Atomic system

1. (Cu) characteristic concentration: 3.0μg/ml, absorbance not less than 0.300Abs
2. (Cu) detection limit: <0.005μg/ml
3. Precision: RSD≤0.8%
4. Sprayer: high efficiency glass atomizer
5. Burner: 100mm titanium metal, air premixed
6. Atomizing chamber: corrosion resistant material
7. Position adjustment: auto setting for the optimum height of the flame burner and front and rear position
8. Safety: with many kinds of automatic protection

Graphite furnace atomic system

1. (Cd) characteristic concentration: 0.5x10-12g,
2. (Cd) detection limit: 3.0μg/ml, 15μL sample, absorbance not less than 0.31Abs
3. Precision: RSD≤0.3%
4. Heating temperature range: -3000℃ in room
5. Heating rate: >2000℃
6. Temperature control accuracy: ≤1%
7. Heating temperature control method: the power control method of the dry ashing stage, the atomization stage with the maximum power control
8. Heating condition setting: up to 11 programs, ramp heating-up, moment heating-up, maximum power heating-up
9. Safety: with the alarm and automatic protection when cooling water flow in lack, superheat and over current indicting by the argon under voltage
10. Background correction: in 1A deuterium background correction ≥30 times, in 1A self absorption background correction≥60 times
11. Graphite furnace heating method: constant power heating
12. Measurement method: air-acetylene flame method, hydride generator atomic absorption method, graphite furnace method
13. Concentration calculation: standard curve method (1-3 times curve), interpolation method, standard addition method
14. Repetition survey frequency: 1-20times, calculate average value, display standard deviation and relative standard deviation
15. Printing result: parameters print, data result print, graph print, summary report
16. Software: Windows 98/2000/XP
17. Data output: instantaneous value, integral value, peak value, peak area

Automation system

1. Eight lamps automatic switch, with the high performance lamps
2. Auto scanning and peaking of the wavelength, auto transfer the slit
3. Auto setting the gas flow, to choose the best combustion ratio
4. Auto setting for the optimum height of the flame burner and front and rear position
5. Automatic alarm in fray-out of the flame, alarm in ignition failure
6. Water seal position confirmation protection

Instrument parameter
AAS
Source: AC 220V/50HZ
Power: 220VA
Weight: 100Kg
Volume: 1170mm (L)×480mm(W)×440mm(H)

Graphite furnace
Source: AC 380V/50HZ
Power: 12KVA
Weight: 450Kg
Volume: 410mm (L)×480mm(W)×440mm(H)
Operating temperature: 10℃~35℃
Operating humidity:  ≤80%

Standard Layout

• Main host
• Low noise oil free air compressor
• Operating software
• Accessories
• Wooden case packaging and transportation
• Did not include computer & printer