AA320N Atomic Absorption Spectrometer

1.Built-in computer data processing and LCD screen: Adopts highly integrated computerized digital circuits, stable and reliable. With integral holding, peak height, peak area, auto-zero, adjusting, deuterium lamp background, a variety of linear and nonlinear curve fitting, the screen displays various parameters and working curves, printing reports and other functions, also with an external personal computer interface.

2. Reliable base line stability: optimal design of dual-beam system can compensate for light drift caused by temperature changes the wavelength shift (with the elimination of the baseline stability of wavelength shift function) and the electronic circuit drift, therefore, has a reliable baseline stability cathode lamps do not have to preheating at the long time can immediately analyze samples , analyze a variety of elements and rapid analysis of samples, it is the user's preferred instrument.

3. Measurement accuracy: As gas system is equipped with a precision regulator, steady flow device, flame stability, low noise, the unique design of the light beam could through the fire , ensure the high quality of analysis and testing .

4. High energy optical path: the total reflection optical system, achromatic full band, and a circular light beam by the optical transformation, a spot into the slit length, thereby increasing the double of flux.

5. Long-life corrosion resistance atomization system: burner head with corrosion-resistant, fast thermal equilibrium titanium materials, can achieve stable measurement sensitivity requirements without water cooling.

6. Multi-function analysis method: flame absorption, flame emission, graphite furnace atomic absorption ( AS-3020 autosampler can be equipped) and hydride generation method.

7. Safe and reliable gas system: with fast gas conversion and security guards.

8. Complete accessories: can be used immediately after purchase.

9. Optional data acquisition software and brand computers.

II.Technical parameters

1. Wavelength range: 190nm ~ 900nm

2. Wavelength error: ≤ ± 0.5nm

3. Wavelength repeatability: ≤ 0.3nm (single direction)

4. Spectral bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm

5. Resolution: <40%

6. Baseline Stability: ± 0.004Abs/30min

7. Characteristic concentration of copper : ≤ 0.04μg/ml/1%

8. Detection limit of copper: ≤ 0.007μg/ml

9. Background correction capability: more than 30 times

10.Standby interface: RS 232

11.Instrument power supply: 220V, 3A, 50Hz

12. Model: AA320N/AA230CRT

13. Light source system

Hollow cathode lamp power: current adjustable; deuterium lamp power: current is fixed

14. Optical system: dual-beam reflection system, C-T type monochromator, flashing wavelength 250nm

15. Flame atomization system: Inter-changeable titanium alloy burner of 100mm and 50mm slits. Gas path is equipped with pressure indication, high precision voltage stabilizing flow adjustment, power cut off, prevention of flashback and logic interlock protection device

16. Signal processing:

Has a built-in microprocessor and LCD screen, signaling absorbance, concentration, emission, emission concentration; Standard curves: linear regression, curve fitting and multi-point standard calibration: could calculate mean, standard deviation, relative standard deviation and related data, standard curve can be displayed and printed, atomic absorption peak figure, line profile graph and table data as well as instrument parameters and analytical reports, etc.

17. Alternate interface: RS232C interface and USB interface

18. Host power: 220V, 3A, 50Hz

19. Model / options: AA320N/AA320CRT

20.AS3020 graphite furnace autosampler: used to improve the degree of automation and accuracy

21.HGA graphite furnace system: for trace and ultra-trace analysis, the absolute sensitivity of 10-10-10-12 g

22. Hydride generator (automatic):

The arsenic, selenium, antimony, bismuth, lead, tin, tellurium, germanium, indium, thallium, cadmium, zinc and other elements' concentration below the ppb level with cold atomic mercury method.

23. Hollow cathode lamp: full specifications

24. Graphite tube: full specifications