Model | QT-AAS2914 | QT-AAS2918 | QT-AAS2928 |
Optical System | Optical Type | Single beam | Single beam | Double beam |
Monochromator | Czerny-Turner type with focal lengths at 350mm |
Wavelength Range | 190-900nm |
Grating | Holographic diffraction grating with 1800 lines/mm |
Slits | Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm |
Wavelength Accuracy | ±0.3 nm | ±0.2 nm | ±0.15 nm |
Wavelength Repeatability | ±0.1nm | ±0.1nm | ±0.05nm |
Lamp Holder | Automated 4-lamp turret | Automated 8-lamp turret |
Detector | Wide range UV sensitive photomultiplier tube |
Photometric Performance | Reading Mode | Transmittance(T), Absorbance(A), Concentration(C) |
Photometric Range | 0-125%, -0.1-3.00A |
Static Baseline Drift (Cu) | ≤0.004A/30 min | ≤0.003A/30 min | ≤0.002A/30 min |
Dynamic Baseline Drift (Cu) | ≤0.006A/15 min | ≤0.005A/15 min | ≤0.004A/15 min |
Background Correction | Deuterium (D2) Background Correction | D2 and Self-absorption |
Flame Analysis | Characteristic Concentration | Cu≤0.04ug/ml | Cu≤0.035ug/ml | Cu≤0.02ug/ml |
Detection Limit | Cu≤0.008ug/ml | Cu≤0.006ug/ml | Cu≤0.004ug/ml |
Repeatability (Cu) | RSD≤1% | RSD≤0.6% | RSD≤0.5% |
Acetylene Flow Control | Auto 12-level | Auto 12-level | Auto 12-level |
Air Flow Control | Auto 4-level | Auto 4-level | Auto 4-level |
Nebulizer | High efficiency glass |
Burner Adjustment | Automatic up and down |
Burner Head | Titanium alloy 100mm burner for air/acetylene operation |
Premix Chamber | Corrosion resistant |
Safety Protection | Flame sensor, gas leak sensor, gas pressure sensor |
Data Processing | Software | RGWIN AAS software pacakage |
Analytical Method | Flame AA, Flame AE, Hydride Generation |
Concentration Calculation Method | Standard curve(6 linear/non-linear fitting), Standard Addition, Interpolation |
Repeated Measurement Times | 1-30 times, calculate the average, show SD and RSD value of absorbance and concentration |
QA/QC Function | Correlation coefficient, SD & RSD of Abs and calculate SD & RSD of concentration |
Report Printing | Parameter printing, resulting printing |
Communication Port | Standard RS-232 |
Others | Computer | External(excluded) |
Dimension & Weight | 850*650*550MM(W*D*H), 100Kg |
Power Supply | 110/220V, 50/60Hz |
Working Environment | Temperature 10 ~ 35 °C, Humidity≦85% |
