Flame Atomic Absorption Spectrophotometer, BNAAS-D120
The patented flame analysis technique adopting rich oxygen air-acetylene flame as the substitution for nitrous oxide-acety-lene flame for high temperature element analyses,it possible to choose the best atomization temperature for different elements.It features easy operation, low analysis cost and wide flame AAS analytical range. Rich oxygen flame is will not pollute the environment and is not harmful to human bodies.
Technical Data:
| Wavelength range | 190-900nm |
| Wavelength accuracy | ±0.25nm |
| 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 |
| 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. |
| Lamp turret | 6-lamp turret |
| auto alignment, fully automated scan and peak-picking. | |
| Lamp current adjustment | Automatic adjustment and display. Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA |
| Lamp power supply mode | 400Hz square wave pulse |
| 100Hz Narrow square wave pulse + 400Hz wide square wave pulse | |
| 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. |
| Burner | 10cm single slot all-titanium burner |
| Spray chamber | Corrosion resistant all-plastic spray chamber. |
| Nebulizer | High efficiency glass nebulizer with metal sleeve, sucking up rate: 6-7mL/min |
| Emission burner | Provided |
| Detector | R928 Photomultiplier with high sensitivity and wide spectral range. |
| 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 |
| Result printing | Measurement data and final analytical report printout, editing with Excel. |
| Standard RS-232 serial port communication | |
| Normal Air-C2H2 flame | Cu: Characteristic concentration≤0.025mg/L, Detection limit≤0.006mg/L; |
| Oxygen-rich Air-C2H2 flame | Ba: Characteristic concentration ≤ 0.22mg/L |
| Hydride vapor generator can be connected for hydride analysis. | |
| 1020 (L) × 490(W) × 540 (H) mm (main unit), unpacked 80kg | |
Flame atomization system with flflame emission burner
A flflame emission burner head can be installed to perform flflame emission analysis to Alkali metals as K, Na etc.
Accurate fully automated control system
Automatic multi-lamp turret, automatic adjustment of lamp current and optimization of light beam position.
Automatic wavelength scanning and peak picking
Automatic spectral bandwidth changing
Automatic ignition
Perfect safety protection measures
Alarm and automatic protection to fuel gas leakage, abnormal flflow, insufficient air pressure and abnormal flflame extinction in flflame
system;
Advanced and reliable electronic design
Adopting large-scale programmable logic array and Inter I2C bus technology
European type sockets and AMP adapters with high reliability to ensure long term reliability of the whole electronic system.
Alarm and automatic protection to fuel gas leakage, abnormal flflow, insufficient air pressure and abnormal flflame extinction in flflame system;
Easy and practical analysis software
Easy-to-use AAS analysis software is made under Windows operating system, realizing fast parameter setting and optimization.
Automatic display of measured data, automatic calculation and analytical result automatic print out.
Atomic absorption spectrophotometer is used to analyze elements in agriculture, chemical, environmental study, food, mining, and petrochemical, pharmaceutical industries.
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