AAS atomic absorption spectrometer for trace metal elements analysis
Laboratory AAS atomic absorption spectrometer for trace metal elements analysis
- Model： KR-AA320N
Features:
1. Build-in computer data processing and LCD: adopting highly integrated micro digital circuit, which is stable and reliable with the functions of integral holding, peak height and area, auto zero adjusting, deuteriumlamp and background, multi-linear and nonlinear curves fitting, various parameters and working curves displayed in screen and report printing, etc. It is equipped with interface for externally linking PC.
2. Good basic line stability: Double-beam system of optimized design can automatically compensate the light source drift and wavelength drift caused by the variation of temperature (with the function of the eliminating the affection of wavelength drift on the base line stability) and electronic circuit drift so as to reach a good basic line stability.
The cathode lamp needs not be pre-heated for long time and sample can be analyzed immediately. It is the preferable instrument chosen by users to conduct analysis of multiple kinds of elements and fast analysis of samples.
3. High precision of measurement: Gas path system is equipped with precision pressure stabilizing andcurrent Stabilizing devices to reach stable flame and low noise. Specially designed fine light beam passesthrough the flame to ensure a high precision analytical test and low characteristic concentration
4. Optical path of high energy: A total reflection system is adopted to eliminate color difference in full range.
By means of chemical conversion, a round light spot of the light source becomes a long light spot, whichenters into the slit. The light flux of double beam is enhanced.
5. Long-life and anti-corrosive atomization system: The burner is made of new type titanium alloys, anti-corrosive and fast thermal equilibrium. It meets the requirement of measurement sensitivity without water- cooling.
6. Multi-functional analysis mode: for methods of flame absorption, flame emission, graphite furnace atomic
absorption and hydride generation.
7. Safe and reliable gas path system: Special devices of quick gas conversion and safety protection can be used to analyze air-acetylene flame.
8. Complete set of accessories: to be supplied with the instrument and ready for use after they are purchased.
Model | Name | Detection limit | Light stand | Module | Remark |
AA320N | Atomic absorption spectrophotometer | Cu≤0.007μg/ml | 1 | Flame type, Optional graphite furnace | Single vision, can't connect to computer |
AA320NCRT | Atomic absorption spectrophotometer | Cu≤0.007μg/ml | 1 | Flame type, Optional graphite furnace | A set of equipment, With computer, printer. With software. |
Model | AA320N/AA230CRT |
Wavelength range | 190nm~900nm |
Wavelength indication error | ≤±0.5nm |
Wavelength repeatability | ≤0.3nm(single direction) |
Spectral bandwidth | 0.2nm,0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm |
Resolution | <40% |
Baseline stability | ±0.004Abs/30min |
Concentration | The characteristic concentration of Cu is≤0.04μg/ml/1% |
detection limit | Cu≤0.007μg/ml |
correction capability | >30 times |
Light source system | Hollow cathode lamp: current adjustable; xenon lamp: current fixed |
Optical system | Double beam total reflection system, C-T type monochromator, blaze wavelength 250mm |
Flame atomization system | Interchangeable 100mm and 50mm single-peak titanium alloy combustion heads, with pressure indication, high-precision regulated flow regulation, gas shutoff, power failure, anti-tempering function and logic interlock protection device. |
Signal processing | It has built-in microcomputer and LCD display. The signal mode includes absorbance, concentration, emission and emission concentration. The standard curve has linear regression, curve fitting and multi-point standard correction. The average value, standard deviation, relative standard deviation and related data can be calculated. Standard curves, atomic absorption peaks, line profile and data, instrument parameter tables and analysis reports can be displayed and printed. |
Alternate interface | RS232C and USB interface |