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  • Place of Origin: Henan, China (Mainland)
  • Brand Name: Nanbei
  • Model Number: NB-7020
  • Size: 1250*800*750mm
  • Weight: 120KG
  • Focal Length: 0.1, 0.2, 0.4, 1.0, 2.0 nm
  • Wavelength Range: 190-900nm
  • Measurement Range: 190-900nm
  • Product name: AAS spectrometer flame atomic absorption spectrophotometer
  • Working spectral range: Baseline stability ≤±0.003A/30 min (Static) ≤±0.002A/30 min (Dynamic)
  • Wavelength accuracy: ±0.1nm
  • Wavelength repeatability: ≤ 0.05nm
  • Spectrum bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm
  • Resolution: better than 0.1nm
  • Mono-chromator: C-T Grating Mono-chromator
  • Grating: 1800 lines/mm
  • Application: metal elements analysis instrument
  • Advanced: professional machine manufacturer

Packaging & Delivery

Packaging Details Wooden case AAS spectrometer flame atomic absorption spectrophotometer
Delivery Time 7 days after your PO

AAS spectrometer flame atomic absorption spectrophotometer

Product Description
AA-7020 series atomic absorption spectrometer can be used in the fields of metallurgy, petrochemical, geology, medical science, environmental protection, scientific research, agriculture, disease control, food safety, material science, and quality inspection among others. The AA-7020 series can be used to analyze over 70 elements at both percent and trace levels.
Advanced Optical System
1 The AA-7020 series features a unique suspension design for the optical system. Shaking of the instrument bench or change of the environmental temperature will have no effect on the instrument’s stability. (Patent No. ZL200620023296.X)
2 First domestic manufacturer to use an 1800 lines/mm diffraction grating, which increases resolution and energy efficiency.
3 A single beam and short optical system allows for a strong signal and very low detection limits for elements such as As, Se among others.
4 Carefully designed deuterium lamp background reduction and self-absorption background reduction results in more accurate calibration.
Integrated Design
1 The AA-7020 features an integrated flame and graphite furnace design that contains the optical system, atomizer, graphite furnace power supply and electronics all in one unit. It is first such design and one of the most compact AAS in the world. (Patent No. ZL200620023298.9)
2 Optimized lamp power supply technology to prolong lifetime of element lamps.

Reliable Safety System
1 Safe and reliable control alarming devices to ensure over-current protection for hollow cathode lamps.
2 Under-pressure protection of combustion gas/protection gas, leakage alarm of combustion gas, over-heated protection of graphite furnace and protection against abnormal flame.
High Degree of Automation
1 Automatic wavelength positioning, automatic slit switch and automatic optimization of lamp current and gain. All of these operations can be completed within 40 seconds.
2 The six lamp rotating turret is controlled by computer for automated element lamp selection, which allows for automated analysis of up to six elements in sequence.
3 Automatic flame ignition, automatic control of the flow rate of combustion gas, and automatic alarm of gas leakage.
Additional Features
Auxiliary Gas
Auxiliary gas, such as oxygen, can be used in the internal gas path of the graphite furnace to sufficiently remove organic components of the sample during the ashing treatment phase in order to reduce interference and increase analysis accuracy.

Automatic Flame Height Adjustment
Automatically find the optimal flame height for best analysis condition.

Automatic Protection of the Liquid Trap
Flame ignition is controlled with a combination of a float inside the liquid trap and an electromagnetic valve to avoid acetylene leakage due to lack of water in the liquid trap. This increases operation safety.
This single beam instrument comes in configuration, listed below.
ModelMajor Configuration
AA-7020Main unit with flame
Fast wavelength scan
Automatic gain and slit control
Six lamp rotating turret
Automatic lamp current control
Automatic high voltage control,
Deuterium background correction
Self absorption background correction
Electronic gas flow control
Water level monitoring
Computer controlled flame ignition
Nitrous oxide gas route
Ethernet communication

Complete Set of AAS
1. Main Unit (Any Model)
2. PC, Printer, Workstation Software
3. Gas Sources: Oil-less air compressor
4. Element Lamps (based on user selection)
5. Spare Parts

Data Processing Workstation
User Friendly Interface
Run on the Windows XP operating system in languages including Chinese, English, and Korean among others.

Strong Analysis Capabilities, Fault-tolerant Processing, and Flexible Modification of Curve Fitting Equation

Report Printing
Customizable report templates are capable of generating reports of any format the user may need.

QA/QC Control
The QA/QC feature allows for automated determination of whether the analysis result or some function of the result exceeds user-defined limits. If the result exceeds the limit, the system automatically runs the analysis again according to setup parameters. Functions of QA/QC include standard deviation (SD) detection, relative standard deviation (RSD) detection, correlation coefficient detection, QC detection, baseline drift (sensitivity correction) detection, sample upper limit detection (automatic online dilution).

Instrument Control
Automatic selection of element lamps, automatic wavelength scanning, automatic slit switch, automatic setup of lamp current.

Status Monitoring
Real-time dynamic monitoring of working conditions. For flame method: type of burner head (air + acetylene or nitrous oxide + acetylene), water level of the liquid trap, status and pressure of the combustion gas and the oxidant gas, flow rate of the combustion gas, acetylene leakage alarm.

Management of Lamp Use Time
Automatically records the use time of element lamps.

Technical Specifications
Optical System
Wavelength range: 190~900 nm
Spectral bandwidth: Automatic switching between 5 levels: 0.1, 0.2, 0.4, 1.0, 2.0 nm
Mono-chromator: C-T Grating Mono-chromator
Wavelength accuracy: ±0.1 nm
Wavelength repeatability: ≤0.05 nm
Grating: 1800 lines/mm
Blaze wavelength: 250 nm
Baseline stability: ≤±0.003A/30 min (Static)
≤±0.002A/30 min (Dynamic)
Resolution: better than 0.1nm

Flame Method
Benchmark Concentration of Cu: ≤0.02 μg/ml
Detection Limit: ≤0.003 μg/ml
Precision RSD: ≤0.6%
Burner: Interchangeable full titanium burner of 50 mm and 100 mm
Position Adjustment: Adjustable height and angle. Flame to hydride can be switched in less than 1 minute.

Background Correction
Background correction is available for both flame and graphite furnace method.
Correction mode: Deuterium lamp, self absorption background correction (optional)
Correction capability: When background absorption approaches 1.0 Abs, the instrument is capable of a background correction of 60 times or more.

Data Processing
Measurement methods: Flame absorption, flame emission, graphite furnace, and hydride method
Analysis method: Linear fitting, nonlinear fitting, standard addition method
Printing output: Calibration curve, spectrum, analysis conditions, analysis parameters, and analysis results can be automatically stored and printed.

Air Compressor
1 The air compressor is a double cylinder piston compressor that is stable, reliable and oil-less.
2 It uses three filters (two filters for gas inlet and one filter for gas outlet) to ensure that the gas output is pure.
3 Provides clean and dry compressed air with constant pressure for atomic absorption spectrometers.

ModelGas flowPressure rangeDimensionsFeaturesNote
NB-320AC20L/min0.005-0.3Mpa400*300*635mmQuiet oil-less dual pistion compressorsManual drain
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