7800 Atomic Absorption Spectrophotometer
The national-initiative unique multimedia graphite furnace visual system can intuitively monitor the sample's dynamic evolution during drying, ashing and residue burning process in the graphite tube. It enables convenient observation of the auto sampler's capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube's lifetime. Meanwhile, it is a a perfect training tool.
Delicate and Reliable
Electronic control of flame gas flow
Closed & isolated optical system
Suspension type of optical platform design
Power control of graphite furnace temperature programming
Flexible Configuration
Flame only, graphite furnace only, and combined flame & graphite furnace are available according to demand
One instrument has multifunctional configuration of flame, graphite furnace and hydride generator
6-lamp turret meets the requirement of multielements analysis
Complete optional accessories support the instrument's upgrade and extension
Compact and Easy to Use
Stack design of combined flame and graphite furnace makes the system compact, 10 seconds to complete flame/graphite furnace switch
High-performance auto sampler conveniently and reliably improves laboratory efficiency
Intelligent EZPectrumTM workstation provides simple and easy-to-use user experience and laboratory standard requirements
Convenient Operation
National initiative visual system of atomization in graphite furnace
Dynamically monitor drying, ashing and atomization process
Intuitively control the depth and position of sampling
Perfectly demonstrate graphite furnace sampling
7800 Flame Atomic Absorption Spectrophotometer
7800 Atomic Absorption Spectrophotometer is fully PC controlled. It can be flexibly equipped with optional graphite furnace, auto sampler, and hydride generator.
Unique optical mechanical design, safe and convenient flame system, optional background correction technologies, as well as convenient functions provided by the workstation, suit your pursuit of automatic and precise test results.
Main Features
Compact and delicate appearance
Convenient options of background correction method
Unique optical design
Perfect automation control is easily realized by using the software workstation
Safe, reliable and convenient flame system
Multifunctional software workstation
Specifications
6-lamp turret:
Wavelength range: 190-900nm
Wavelength indication error: ≤±0.3nm
Wavelength repeatability: ≤0.15nm
Photometric range: -0.1-2.5 (A)
Spectral bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm
Static baseline drift: ≤0.002ABS/30min(Cu)
D2 background correction capability: ≥50 times when background signal =1A
Self reversal background correction
Power supply: AC220V±22V 50Hz±1Hz
Flame System
Air/Acetylene burner head: 100mm
Nitrous oxide /Acetylene burner head: 50mm
Spray chamber: polypropylene coating
Ignition dynamic baseline stability: ≤0.004ABS/30min(Cu)
Characteristic concentration: ≤0.02μg / ml / 1%
Repeatability : Cu≤0.5%;(Absorbance>0.8Abs)
Detection limit: Cu≤0.004ug/ml
Safety system: automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched.
7800 Graphite Furnace Atomic Absorption Spectrophotometer
It achieves perfect combination of graphite furnace and automation technology. Integrate graphite furnace and auto sampler into one module, and solve the problems of auto sampler adjustment and optical path calibration during switching process. Checked by hundreds of laboratories, this graphite furnace system is extremely cost effective.
It can be used with flame atomic absorption spectrophotometer. From high concentration ppm level to trace ppt level can all be analyzed. The atomizer needs no switching, which greatly simplifies operation.
Main Features
6-lamp turret, multi-lamps can be preheated simultaneously
85 position auto sampler
Max. heating speed: 3000ºC/s; Working temperature of graphite furnace: room temperature-3000ºC
Compact design, fully automatic process control
Self reversal and D2 background correction
Gas Control
Separate control of in-tube gas and external gas. During the analysis, keep the gas flowing outside the tube, cut off the gas in the tube at atomization stage, effectively protect graphite tube, maximize the tube's lifetime, and gain high analysis sensitivity.
Visual System of Graphite Furnace
The national-initiative unique multimedia graphite furnace visual system can intuitively monitor the sample's dynamic evolution during drying, ashing and residue burning process in the graphite tube. It enables convenient observation of the auto sampler's capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube's lifetime. Meanwhile, it is a a perfect training tool.
Specifications
Max. heating speed: 3000ºC/s;
Working temperature of graphite furnace: room temperature-3000ºC
Characteristic value: Cd≤1pg;Cu≤10pg
Precision RSD: Cd≤3%;Cu≤3%
Weight: 80kg
Dimension: 700*550*440mm
Safety: over current protection, alarm when the pressure of protection gas is low, automatically stop heating when over temperature
Power supply: 220VAC
Power: 6000W (instantaneous maximum power)
7800 Multielements Fast Analysis Atomic Absorption Spectrophotometer
The outstanding feature of this product is that multielements can be analyzed simultaneously. It is very suitable for analyzing multiple components in one sample. It uses similar analysis mode to that of ICP, but has the price of atomic absorption spectrophotometer. It can greatly increase analysis efficiency and save sample volume. Besides, this model, according to user's demand, can also analyze one single component, working in the same mode as a flame atomic absorption spectrophotometer.
Main Features:
Simultaneously analyze 4-6 elements within one minute (similar speed to ICP)
AAS price while enjoy ICP function (multielements analysis simultaneously)
Fast analysis, similar to the speed of ICP, test result of multiple components come out simultaneously by one sampling
Freely combine the multiple elements according to the requires of analysis
Save sample volume for multiple components analysis
Rapid change of gas flow, grating rotation, slit and hollow cathode lamps
Unique optical design greatly increases the sensitivity in visible range
Excellent mechanical and optical system plus outstanding software ensure the measurement accuracy
Specifications
Wavelength range: 190-900nm
6-lamp turret: 1 lamp working, and 3 lamps preheating
Wavelength repeatability: ±0.1nm
Wavelength accuracy: ±0.2nm whole range
Photometric range: 0-2.5Abs
Resolution: spectral bandwidth = 0.2nm, can separate Mn two lines(279.5nm and 279.8nm), valley/peak energy ratio<20%
Spectral bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm
Static baseline drift: ≤0.002ABS/30min(Cu)
Weight: 80kg
Dimension: 500*450*430mm
Grating: 1800lines/mm
D2 background correction: background signal =1Abs, correction capability ≥50 times self reversal background correction
Accessories
Graphite Furnace
Graphite furnace atomization device is an electrothermal atomizer that increases the sensitivity of most metal elements from mg/L to μg /L
Advanced optical controlled temperature programming system, realize automatic full power heating at atomization stage.
Heating condition setup: drying, ashing, atomization and two heating modes.
Temperature range: ambient-3000ºC
Temperature control mode: voltage feedback mode for drying and ashing, voltage or optical control feedback for atomization
Characteristic concentration: Cu<1.0×10-10g, Cd<1.0×10-12g
Auto Sampler
Automatic curving function: do not need manual set of calibration curves. Prepare a standard solution, then the sampler will automatically set the calibration curve and measure.
Intelligent residual removal function: do not need artificial judgement and operation. It will automatically tell whether there are residuals and remove residuals to eliminate cross- contamination
Intelligent dilution function: fully automatic dilution. According to sample concentration, the instrument will automatically give dilution ratio, match to the best measurement area, and automatically finish dilution and measurement. The whole process needs no manual intervention
In-tube visual system: monitor injection and drying process. All tiny subtleties of drying come into your view, enabling fast and accurate setup of ashing temperature
Quality control: intelligent analysis quality control technology, calibrate blank and quality control sample at regular intervals and monitor the precision of test results
Hydrate Generator
Essential analytical equipment for environmental monitoring, food hygiene, quality inspection, commodity inspection, and drinking water monitoring
Highly automated: only one start key. Sampling, generating, measuring and cleaning will all be done by pressing the button.
Unique electrothermal quartz absorption tube: Small and exquisite device, heated quickly, convenient to install, with stabled temperature, more than 10 times lifetime than flame, free of gas consumption, analytical method can be rapidly changed once it is cooled down.
Adopt advanced flow injection technology. Sample reaction is more uniform. The stability is improved. RSD<2%
Measurement rate: 100times/hour
Single sampling volume: <2mL
Flame System
| Item |
7800 |
| Wavelenth Range |
190-900nm |
| Grating |
1800lines/nm |
| Wavelength Repeatability |
±0.1nm |
| Wavelength Indication Error |
Whole range ±0.2nm |
| Optical System |
Czerny-Turner system, integrated optical platform, fully sealed optical system |
| Resolution |
Spectral bandwidth =0.2nm can separate Mn two lines (279.5nm and 279.8nm, valley/peak energy ratio <20% |
| Spectral Bandwidth |
0.1nm, 0.2nm, 0.4nm, 0.7nm, 1.0nm, 2.0nm |
| Static Baseline Drift |
≤0.002ABS/30min(Cu) |
| Background Calibration Technology |
D2 (background signal =1Abs, background correction capability ≥50 times |
| Instrument Design |
Integrating structure of suspended internal and external optical path |
| Lamp Turret |
6-lamp turret ( 6 lamps can be preheated simultaneously |
| Burner Head |
Air-acetylene burner head (100mm) |
| Nebulizer |
High-efficiency glass nebulizer |
| Ignition Dynamic Baseline Drift |
≤0.004ABS/30min(Cu) |
| Characteristic Concentration (Cu) |
≤0.02μg/ml/1%(Absorbance>0.8ABS) |
| Detection Limit |
Cu≤0.004ug/ml |
| Repeatability (Cu) |
≤0.5% |
| Gas Flow Control |
Auto |
| Ignition Method |
PC control |
| Safety Protection |
Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched
|
| Background Correction Method |
SR and D2, correct 1A background. When background signal =1Abs, correction capability ≥50 times |
| Dimension |
700*550*530mm |
Graphite Furnace System
| Item |
Specification |
| Graphite Furnace Visual System |
Must be configured with graphite furnace visual system, to intuitively monitor the sample's dynamic evolution during drying, ashing and residue burning process in the graphite tube, conveniently observe the auto sampler's capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube's lifetime. Meanwhile, it is a perfect training tool.
|
| Graphite Furnace Protection |
Instantly stop heating and alarm in case of graphite furnace accidentally broken |
| Heating Method |
Longitudinally |
| Internal Gas Flow |
Automatic adjustment |
| Working Temperature |
Ambient - 3000ºC |
| Max. Heating Rate |
≥3000ºC/s |
| Characteristic Value |
Cd≤1pg,Cu≤10pg |
| Measurement Repeatability |
Cd≤3%,Cu≤3% |
| Temperature Control Method |
Power control for drying and ashing, optical control max. Power heating for atomization |
| Operation Software |
Windows operation software |
| Extended Function |
Hydride generator |
| Dimension |
280*550*450mm |
Auto Sampler
| No. of Samples |
85 positions |
Sampling Volume |
1μL-50μL |
| Cup Material |
Polypropylene |
Sampling Precision |
Better than 1% when volume ≥10μL |
| No. of Matrix Modifier |
5 |
Min. Increment |
1μL |
| Standard Cup Volume |
2mL sample, 10mL reagent |
|
|
Relative Products
5800 Atomic Absorption Spectrophotometer
5800 Atomic Absorption Spectrophotometer is a modified model based on 7800. It is an economical flame atomic absorption spectrophotometer with high performance, easy operation, accurate measurement and stable functions. It meets the requirement of limited budget and is well received by vast number of users.
Main Features
On the basis of 7800 AAS, considering commonly used functions, selectively keep some functions, highly cost effective.
The instrument has good stability, wide measurement range, low detection limit, high resolution and high sensitivity
Unique optical design greatly increases the sensitivity in visible range. The outstanding mechanical and optical system plus excellent software ensure measurement accuracy
Rapid change of gas flow, grating rotation, slit and hollow cathode lamps
Widely used in rare earth analysis, precious metal analysis, environmental protection, water quality inspection, alloy materials, construction materials, medicine and health, colleges and universities for quantitative analysis of elements
Practical structure, simple operation, easy to master
Fully satisfy the users who require flame analysis only
Optional nitrous oxide is available. It expands measurement range and meets the demands from different areas.
Specifications
Wavelength range: 190-900nm
Grating: 1800lines/mm
Wavelength repeatability: ±0.1nm
Wavelength indication error: ±0.2nm whole range
Optical system: Czerny-Turner, integrated optical platform, fully closed optical system
Resolution: spectral bandwidth = 0.2nm, can separate Mn two lines(279.5nm and 279.8nm), valley/peak energy ratio<30%
Spectral bandwidth: 0.1, 0.2, 0.4, 1.0nm
Static baseline drift: ≤0.004ABS/30min(Cu)
Background correction technology: D2 (background signal =1Abs, correction capability ≥50 times)
Instrument design: integrating structure of suspended internal and external optical path
Lamp turret: 4-lamp turret (4 lamps can preheat simultaneously)
Burner head: air/acetylene (100mm, optional 50mm nitrous oxide/acetylene burner is available)
Nebulizer: high-efficiency glass nebulizer
Ignition dynamic baseline drift: ≤0.004ABS/30min(Cu)
Characteristic concentration: Cu ≤0.025μg/ml/1%
Detection limit: Cu≤0.008ug/ml
Repreducibility: ≤0.5% ;(Cu, absorbance>0.8ABS)
Gas flow control: manual
Ignition: via buttons on the control panel
Safety protection: automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched
Background correction method: SR and D2, can correct 1A background. Background signal = 1A, correction capability ≥50 times
Dimension: 700*550*530mm
| Item |
5800 |
|
| Wavelenth Range |
190-900nm |
|
| Grating |
1800lines/nm |
|
| Wavelength Repeatability |
±0.1nm |
|
| Wavelength Indication Error |
Whole range ±0.2nm |
|
| Optical System |
Czerny-Turner system, integrated optical platform, fully sealed optical system |
|
| Resolution |
Spectral bandwidth =0.2nm can separate Mn two lines (279.5nm and 279.8nm, valley/peak energy ratio <30% |
|
| Spectral Bandwidth |
0.1nm, 0.2nm, 0.4nm, 1.0nm |
|
| Static Baseline Drift |
≤0.004ABS/30min(Cu) |
|
| Background Calibration Technology |
D2 (background signal =1Abs, background correction capability ≥50 times |
|
| Instrument Design |
Integrating structure of suspended internal and external optical path |
|
| Lamp Turret |
4-lamp turret ( 4 lamps can be preheated simultaneously |
|
| Burner Head |
Air-acetylene burner head (100mm, optional 50mm nitrous oxide-acetylene is available) |
|
| Nebulizer |
High-efficiency glass nebulizer |
|
| Ignition Dynamic Baseline Drift |
≤0.004ABS/30min(Cu) |
|
| Characteristic Concentration (Cu) |
≤0.025μg/ml/1%(Absorbance>0.8ABS) |
|
| Detection Limit |
Cu≤0.008ug/ml |
|
| Repeatability (Cu) |
≤0.5% |
|
| Gas Flow Control |
Manual |
|
| Ignition Method |
via buttons on the control panel |
|
| Safety Protection |
Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched
|
|
| Background Correction Method |
SR and D2, correct 1A background. When background signal =1Abs, correction capability ≥50 times |
|
| Dimension |
700*550*530mm |
|
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