GGX-920 atomic absorption spectrophotometer

Performance characteristics:
1. Zeeman background correction, full band background subtraction, constant magnetic field, transverse Zeeman technique;
2. Quasi dual beam, no preheating required;
3. Eight light automatic lighthouse, simultaneously preheating eight elemental lights;
4. The patented design of the rotating lighthouse overcomes the twisting of the light cable;
5. Wavelength range 190-900nm; nm;
6. Czerny turner type optical path design, 1800 engraved lines/mm plane diffraction grating;
7. Focal length 270mm, short optical path, strong energy;
8. The spectral bandwidth is automatically adjusted to 0.2, 0.2, 1.0, and 2.0;
9. Automatic peak setting and automatic spectral bandwidth;
10. Chinese Win software, with powerful functions, allows for the selection of any calibration curve and any blank for calibration.
characteristic:
1. Integrated design, built-in graphite furnace power supply, graphite furnace heating is controlled by current voltage vector, with a heating accuracy of 0.5% (2000 ℃);
2. Video monitoring of the injection and heating process facilitates the adjustment of the injection needle and the design of the heating program;
3. Heating range: room temperature -3000 ℃, heating rate: ≥ 2000 ℃/s;
4. Equipped with furnace temperature monitoring, measurement is prohibited if the furnace temperature is too high;
5. Equipped with gas pressure monitoring to prevent damage to graphite cones and graphite tubes caused by unprotected gas;
6. Equipped with transformer temperature monitoring to prevent damage to power transformers;
7. Warning of graphite tube fracture or failure to clamp, ensuring normal measurement;
8. 64 bit automatic sampler with patented design, dual injection pump design, vertical injection, injection accuracy of 0.5% (20 μ L);
Technical indicators:
1. Baseline drift (Cu): static<0.003A/30min;
2. Detection limit (Cd): ≤ 1pg;
3. Precision (Cd): ≤ 2%;
4. Wavelength repeatability ≤ 0.3nm; wavelength accuracy ≤ ± 0.3nm;
5. Spectral bandwidth deviation: ≤ 0.02nm;
6. Background correction capability: ≥ 60 times