Flame integrated graphite furnace atomic absorption

Flame integrated graphite furnace atomic absorptionD900 System Description

Desktop design atomic absorption spectrometer, flame and graphite furnace integrated machine, flame graphite furnace shares one set of automatic sampler, parallel design, the position of combustion head and graphite tube remains unchanged when switching.

Flame integrated graphite furnace atomic absorptionD900 Details:

1. Optical System: Total Reflection Optical System

2. Wavelength range: 180-900nm

3. Spectral bandwidth: automatic selection of slit width, automatic selection of slit height, 6 modes

4. Detector: Wide range and high sensitivity photomultiplier tube detector

5. Number of lamp stands: 8 lamp stands, automatically recognize lamp names and set recommended lamp current values.

6. Automatic sampler: flame and graphite furnace two in one automatic sampler, with over 80 positions and adjustable injection volume of 1-99 μ L. The automatic sampler is powered by the host and controlled by software

7. Gas control: Three way gas control, fully computerized control and monitoring of gas and auxiliary gas

8. Safety protection: Real time monitoring of gas pressure, real-time detection of water seal pressure, real-time monitoring of flame combustion status by flame detection plate, flame extinguishing in abnormal situations, automatic closure of gas valve, automatic recognition of different flame types, and ability to perform gas blowing in the atomization chamber even after abnormal power failure to avoid gas residue causing backfire after sudden fire extinguishing. The software can perform gas leakage testing

9. Burner system: Titanium combustion head, flame automatically aligns in the optical path, burner's vertical and horizontal positions automatically adjust, and can rotate at any angle from 0-90 °

10. Combustion system: Adjustable universal atomizer, corrosion-resistant

11. Ignition method: computer-controlled automatic ignition

12. Sensitivity: 2ppm Cu absorbance ≥ 0.4A

13. Stability: 2ppm Cu repeated 7 times, RSD%≤0.3%

14. Graphite furnace: The internal and external airflow are separately controlled by a computer and are absolutely separated

15. The opening and closing of the graphite furnace is controlled by computer pneumatic control, which facilitates the replacement of graphite tubes

16. Power supply: Built in graphite furnace power supply, DC electric heating

17. Temperature control: Real temperature control, with voltage compensation and graphite tube resistance change compensation functions, temperature accuracy ≤ ± 10 ℃

18. Graphite tube: Integrated arc platform pyrolytic coated graphite tube, capable of large volume injection

19. The graphite furnace injection system has the function of direct suspension injection, which can directly analyze fruit wine, fruit juice, edible vegetable oil, suspended milk powder, etc

20. Programming: Up to 12 steps of analysis program can be set, and each step can be programmed according to the following parameters.

21. The graphite furnace adopts deuterium lamp automatic balance buckle background correction.

22. The graphite furnace is equipped with a full-color camera device for real-time monitoring of the position of the graphite furnace injection needle, the drying, ashing, and other processes of the sample solution.

23. Sensitivity: Inject 20 microliters of 2ppb Cd and the absorbance is greater than 0.2A.

24. Stability: 2ppb Cd repeated 7 times, RSD%≤1%

25. Maximum operating temperature: 3000 ℃