| Main specification |
| Wavelength range |
190 to 900 nm |
| Wavelength accuracy |
±0.5 nm |
| Resolution |
Two spectral lines of Mn at 279.5 nm and 279.8 nm, can be separated with spectral bandwidth of 0.2 nm and valley-peak energy ratio less than 30% |
| Baseline stability |
0.005 A/30 min |
| Background correction |
D2 lamp background correction capability at 1A is better than 30 times |
|
| Light source system |
| Lamp turret |
2 lamps powered simultaneously (one preheated) |
| Lamp current adjustment |
0 to 20 mA |
| Lamp power supply mode |
400 Hz square wave pulse |
|
| Optical system |
| Monochromator |
Single beam, Czerny-Turner design grating monochromator |
| Grating |
1800 lines/mm |
| Focal length |
277 mm |
| Blazed wavelength |
250 nm |
| Spectral bandwidth |
0.1 nm, 0.2 nm, 0.4 nm, 1.2 nm, automatic change |
| Spectral adjustment |
Manual adjustment for wavelength and slit |
|
| Flame Atomizer |
| Burner |
10 cm single slot all-titanium burner |
| Spray chamber |
Corrosion resistant all-plastic spray chamber |
| Nebulizer |
High efficiency glass nebulizer with metal sleeve, sucking up rate:6-7 ml/min |
| Position adjustment |
Manual adjusting mechanism for vertical, horizontal positions and the rotation angle of the burner/min |
| Gas line protection |
Fuel gas leakage alarm/min |
|
| Detection and Data Processing System |
| Detector |
R928 Photomultiplier with high sensitivity and wide spectral range |
| Electronic and micro-computer system |
Automatic adjustment of light source power. Light energy and negative high-voltage auto-balance |
| Display mode |
LEC display of energy and measurement values, concentration direct reading |
| Read mode |
Transient, time average, peak height, peak area, integral time is selectable in the range of 0.1 to 19.9 s |
| Scale expansion |
0.1 to 99 |
| Data processing mode |
Automatic calculation of mean, standard deviation and relative standard deviation. Reporting number is in the range of 1 to 99 |
| Measurement mode |
Automatic curve fitting with 3 to 7 standards; Sensitivity auto-correction |
| Result printing |
Measurement data, working curve, signal profile and analytical conditions can all be printed out |
| Instrument self-check |
Check current status of each function key |
|
| Characteristic Concentration and Detection Limit of Cu |
Cu: Characteristic concentration ≤0.025 mg/L, Detection limit ≤ 0.006 mg/L |
| Dimension |
1020 × 490 × 540 mm |
| Weight |
80 kg |
| Power supply |
AC 220 V, 50 Hz |
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