เครื่องวิเคราะห์โลหะ Atomic Absorption Spectrophotometer AAS รุ่น WFX-320
Model / Description | WFX-110A | WFX-110B | WFX-130A | WFX-130B | WFX-210 | WFX-320 | |
Main Specification | Wavelength range | 190-900nm | |||||
Wavelength accuracy | ±0.25nm | ±0.5nm | |||||
Resolution | Two spectral lines of Mn at 279.5nm and 279.8nm can be separated with the spectral bandwidth of 0.2nm and valley-peak energy ratio less than 30%. | ||||||
Baseline stability | ≤0.004A/30min | 0.005A/30min | |||||
Background correction |
The D2 lamp background correction capability at 1A is better than 30 times The S-H background correction capability at 1.8A is better than 30 times |
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Hollow Cathode Lamps | Lamp turret | 6-lamp turret, fully automated scan and peak-picking. | 6-lamp turret (Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.) | 2 lamps (one preheating) | |||
Lamp current adjustment | Automatic adjustment and display. Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA | ||||||
Lamp power supply mode | Powered by two pulses simultaneously | ||||||
Lamp current adjustment | Automatic adjustment and display. Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA | Micro-computer control Adjustment range: 0~20mA | |||||
Optical System | Monochomator | Single beam, Czerny-Turner design grating monochromator | |||||
Grating | 1800 l/mm | ||||||
Focal length | 277mm | ||||||
Blazed Wavelength | 250nm | ||||||
Spectral Bandwidth | 0.1nm, 0.2nm, 0.4nm, 1.2nm automatic change. | 0.1nm, 0.2nm, 0.4nm, 1.2nm, auto-switch over | Photomultiplier with high sensitivity and wide spectral range. | ||||
Atomizer | Flame/Graphite | Flame & Graphite Furnace atomizer automatic changeover | |||||
Automatic graphite furnace position optimization, automatic flame height setting and horizontal position optimization. | |||||||
Automatic gas flow setting, alarm and automatic protection function for gas leak, abnormal flow, air-pressure deficiency and abnormal flame extinction, automatic ignition. | |||||||
Detector | Photomultiplier with high sensitivity and wide spectral range | ||||||
Software | Ms-Windows 98/Me operating system | ||||||
Analytical method | Working Curve Method (1st order and 2nd order fitting), Sensitivity auto-correction, Standard Addition Method. | ||||||
Concentration | Auto-calculation of concentration and content | ≤0.025mg/L |
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