China PC Controlled Atomic Absorption Spectrophotometer Aas 7800, Find details about China Atomic Absorption Spectrophotometer, Aas from PC Controlled Atomic Absorption Spectrophotometer Aas 7800
Item | 7800 |
Wavelenth Range | 190-900nm |
Grating | 1800lines/nm |
Wavelength Repeatability | ±0.1nm |
Wavelength Indication Error | Whole range ±0.2nm |
Optical System | Czerny-Turner system, integrated optical platform, fully sealed optical system |
Resolution | Spectral bandwidth =0.2nm can separate Mn two lines (279.5nm and 279.8nm, valley/peak energy ratio <20% |
Spectral Bandwidth | 0.1nm, 0.2nm, 0.4nm, 0.7nm, 1.0nm, 2.0nm |
Static Baseline Drift | ≤0.002ABS/30min(Cu) |
Background Calibration Technology | D2 (background signal =1Abs, background correction capability ≥50 times |
Instrument Design | Integrating structure of suspended internal and external optical path |
Lamp Turret | 6-lamp turret ( 6 lamps can be preheated simultaneously |
Burner Head | Air-acetylene burner head (100mm) |
Nebulizer | High-efficiency glass nebulizer |
Ignition Dynamic Baseline Drift | ≤0.004ABS/30min(Cu) |
Characteristic Concentration (Cu) | ≤0.02μg/ml/1%(Absorbance>0.8ABS) |
Detection Limit | Cu≤0.004ug/ml |
Repeatability (Cu) | ≤0.5% |
Gas Flow Control | Auto |
Ignition Method | PC control |
Safety Protection | Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched |
Background Correction Method | SR and D2, correct 1A background. When background signal =1Abs, correction capability ≥50 times |
Dimension | 700*550*530mm |
Item | Specification |
Graphite Furnace Visual System | Must be configured with graphite furnace visual system, to intuitively monitor the sample's dynamic evolution during drying, ashing and residue burning process in the graphite tube, conveniently observe the auto sampler's capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube's lifetime. Meanwhile, it is a perfect training tool. |
Graphite Furnace Protection | Instantly stop heating and alarm in case of graphite furnace accidentally broken |
Heating Method | Longitudinally |
Internal Gas Flow | Automatic adjustment |
Working Temperature | Ambient - 3000ºC |
Max. Heating Rate | ≥3000ºC/s |
Characteristic Value | Cd≤1pg,Cu≤10pg |
Measurement Repeatability | Cd≤3%,Cu≤3% |
Temperature Control Method | Power control for drying and ashing, optical control max. Power heating for atomization |
Operation Software | Windows operation software |
Extended Function | Hydride generator |
Dimension | 280*550*450mm |
No. of Samples | 85 positions | Sampling Volume | 1μL-50μL |
Cup Material | Polypropylene | Sampling Precision | Better than 1% when volume ≥10μL |
No. of Matrix Modifier | 5 | Min. Increment | 1μL |
Standard Cup Volume | 2mL sample, 10mL reagent |