| Optical system |
Wavelength range |
190nm–900nm |
| Monochromator |
C-T type of eliminating aberration monochromator |
| Dispersion elements |
Plane diffraction grating，1800 lines/mm，indented area（40×40）mm2 |
| Spectral bandwidth |
0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm for option |
| Wavelength precision |
The whole waveband is better than ±0.15nm |
| Wavelength repeatability |
The whole waveband is <0.10nm |
| Resolution |
Copper lamp 324.7nm 0.2nm and bandwidth deviation within ±0.015nm |
| Baseline drift |
0.004A/30min |
| Element lamp holders |
6 or 8 lamps can auto-switch without manual-adjustment |
| Detectors |
High sensitivity, wide spectral range photomultiplier tube |
| Flame atomization system (FAS) |
Concentration (Cu) |
0.02ug/ml/1% |
| LOQ (Cu) |
0.006ug/ml |
| Burner |
100mm, single-slit titanium metal burner, which is air-cooled pre-mixed type |
| Precision |
RSD≤0.8% |
| Sprayer |
High efficiency glass sprayer |
| Atomization chamber |
Corrosion-resistant plastic atomization chamber |
| Position adjustment |
The auto-setting of flame burner height and position |
| Safety measures |
Various of automatic safety protection function |
| Graphite furnace atomization system (GAS) |
Characteristic statistic (Cd) |
0.5×10-12g |
| LOQ (Cd) |
1.0×10-12g |
| Precision |
RSD≤1.5% |
| Heating range |
Room temperature~3000℃ |
| Heating operation methods |
Power control method for dry ashing stage, max power light control for atomization stage |
| Temperature control precision |
≤1% |
| Heating rate |
>2000℃/sec. |
| Heating condition setting |
Up to 11 programs, ramp heating , stage heating and max power heating |
| Safety protection |
Functions of argon undervoltage instruction, waterflow discharge cooling, overheating or overflow alarm and auto-protection. |
| Background subtraction |
Back subtraction of deuterium lamp |
1Ahour≥50times |
| Data processing |
Measuring method |
Air-acetylene flame method and atomic absorption method for hydride generator |
| Concentration calculate method |
Standard curve method (1~3 times curve), standard mixing method |
| Repeat measuring times |
1~20 times，repeatedly measure and calculate the average data and automatically get the standard deviation and relative deviation. |
| Result printed |
Parameter printed, data results printed and exported to Excel, graphics printed and summary report. |
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