AA-7050 Series Atomic Absorption Spectrometer
Introduction about AA-7050 Series Atomic Absorption Spectrometer:
* The graphite furnace camera helps users locate injection probe, view sample status in graphite tubes and optimize furnace temperature programming.
* Graphite furnace gas saving mode prolongs the usage time of protection gas and therefore reduces the operating cost of the instrument.
* Graphite furnace double inner gas path permits an auxiliary gas in addition to the protection gas so as to improve the ashing process and obtain better results
* 6 coded lamp turret can automatically identify lamp element and record element lamp usage times.
* Deuterium lamp fine adjustment mechanism ensures perfect overlap of deuterium lamp and element lamp positions.
* Multi-element analysis function and AS-600 flame/graphite furnace auto sampler are equipped to realize fully automated analysis of multiple elements
AA-7050 Series Atomic Absorption Spectrometer Specifications:
1. Optics System:
a) Wavelength Range: 190nm~900nm
b) Band Width: 0.1, 0.2, 0.4, 1.0 and 2.0nm, automatic slit switch
c) Mono-Chromator: C-T grating Mono-Chromator
d) Wavelength accuracy/ error: ±0.1nm
e) Wavelength repeatability: ≤0.05nm
f) Optical grating: 1800 lines/mm
g) Blaze wavelength: 250nm
h) Baseline stability: static state baseline≤0.002A/30min, dynamic baseline≤0.003A/30min
i) Resolution: better than 0.1nm
2. Flame Method:
a) Characteristic concentration: ≤0.02 μg/mL/1% (Cu)
b) Detection limit: ≤0.003 μg/ml
c) RSD≤0.45%
d) Burner head: 50mm and 100mm interchangeable full titanium burner head and full titanium nebulizer.
e) Position adjustment: adjustable height and angles. Flame/hydride method can be switched in 1 minute.
3. Graphite Furnace Method:
a) Characteristic concentration: ≤0.3×10-12g (Cd)
b) Detection limit: ≤0.2×10-12g
c) RSD≤1.8%
d) Temperature control program: Max 20 ramp temperature increasing programming in step, slope or flat mode.
e) Temperature increasing by power or optical control
f) Temperature increasing rate: ≥2000℃/s by power, ≥3000℃/s by optical control.
4. Background Calibration:
a) Both flame and furnace method can run background calibration. b) Background: deuterium lamp, self absorption (optional)
c) Calibration capability: AAS has the calibration capability of more than 60 times when background absorption value is close to 1.0Abs
5. Data Processing:
a) Measurement methods: flame absorption, flame emission, graphite furnace and hydride.
b) Analysis methods: linear equation, non-linear equation, added standard.
c)Print output: calibration curve, signal spectrogram, instrument conditions, analysis parameters and analysis results can all be automatically saved and printed.
6. Specifications:
a) Dimensions: 890mm (L)×567mm (W)×490mm (H), 125kg
b) Power: 220V 50Hz one-phase power, main unit 200W, graphite furnace 4KW.
008615890068607
nanbeiinstrument@nanbei-china.com
008615890068607
Add: No. 72, Beihuan Road, Jinshui District, Zhengzhou,China
