Overview
Atomic Absorption Spectrophotometer FM-AAS-A201 is a flame type automatic PC controlled analyzer. Unit is assembled with 4-lamp turret, air-acetylene flame, D2 background correction, software and Cu, Mn, Hg hollow cathode lamps. Adopted with rich oxygen air-acetylene flame analysis technique as substitution to nitrous oxide-acetylene flame for high temperature element analysis such as Ca, Al, Ba, W, Mo, Ti, V, etc. Flame temperature is continuously adjustable between 2300 to 2950°C, enables it to select best atomization temperature for different elements. Features easy operation, low cost analysis and wide flame AAS analytical range. Its Rich oxygen flame is environmental nonpolluting and harmless to human bodies.
Specifications :
| Main specification |
| Wavelength range | 190 to 900 nm | | Wavelength accuracy | ± 0.25 nm | | Resolution | Two spectral lines of Mn at 279.5 nm and 279.8 nm can be separated with the spectral bandwidth of 0.2 nm and valley peak energy ratio less than 30% | | Baseline stability | ≤0.004 A/30 min | | Background correction | D2 lamp background correction capability at 1A is better than 30 times |
|
| Light source system |
| Lamp turret | 4-lamp turret auto alignment, fully automated scan and peak-picking | | Lamp current adjustment | Automatic adjustment and display
Wide pulse current: 0 to 25 mA,
Narrow pulse current: 0 to 10 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 |
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| 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 to 7 mL/min |
|
| Detection and Data Processing System |
| Detector | R928 Photomultiplier with high sensitivity and wide spectral range | | Result printing | Measurement data and final analytical report printout, editing with Excel | | Software | Windows operating system | | Analytical method | Working curve auto-fitting; standard addition method; automatic sensitivity correction; automatic calculation of concentration and content | | Repeat times | Maximum 20 times of repeat measurement,
automatic calculation of mean value,
standard deviation and relative standard deviation | | Multi-task function | Sequential measurement of multi-elements in one sample | | Condition reading | With model function | | Standard interface | Standard RS232 serial port communication |
|
| Characteristic Concentration and Detection Limit of Cu |
Cu: Characteristic concentration ≤0.025 mg/L,
Detection limit ≤0.006 mg/L; |
| Dimension |
122 × 66 × 89 mm |
| Weight |
160 kg |
| Power supply |
AC 220 V, 50 Hz |
