Basis Informatie.
Element
Computer Multi Element Analyzer
Analysis
Photoelectric Colorimetry
Beschrijving
The AA500 Atomic Absorption Spectrometer is a high performance automated instrument designed to meet the requirements of the modern laboratory. Due to its versatility and performance it can be used for a wide range of applications. The versatile instrument is available in three configurations:
AA500FG-The instrument is equipped with a flame atomizer and a graphite furnace atomiser. The positioning of which is fully controlled by the embedded computer system and AA-Win Pro software. Three flame options are available to the user with the Air/Acetylene being the standard configuration. This flame can be used for nearly all standard elements while the N2O/Acetylene and the Air/LPG (natural gas) are available as an option for the more demanding of elements. All three flame configurations offer coded burner for full safety protection. The graphite head is fixed into the optical path to maximize performance and eliminate drift. The temperature of the transversely heated graphite tube is accurately controlled by means of a precision feedback system. Pyrolytically coated platform tubes are supplied as standard to improve the performance and eliminate many analytical problems associated with this technique. The flame and graphite furnace can be changed over by a simple selection in versatile AA Win software.
Features & Functions
AA-Win Pro software provides full control of the instrument and auto sampler with easy method change for each technique
Automatic 8 Hollow Cathode lamp turret controlled and optimized by the AA-Win Pro software. Operating lamp current and warm-up current can be individually controlled to eliminate drift commonly associated with lamp warming
D2 lamp background correction system fitted as standard to all configurations. High energy D2 lamp and adjustable beam splitter mirror are optimized by the AA-Win Pro software
Self reversal background correction system fitted as standard to all configurations. The high performance background system uses the same hollow cathode lamp as installed for the analysis. Minimum extra components are required and optical alignment is very simple. Self reversal can be used for any element at any wavelength making it extremely versatile.
High precision minimal optics ensures maximum light throughput to the computer controlled Czerny-Turner monochromator.
A universal auto sampler is available as an optional accessory which is conveniently mounted on the front of the AA500 instrument.
Absorption and Emission modes are standard features in the AA-Win Pro software as well as peak height, peak area, sequential and manual integration modes.
Flame Atomiser Features
The flame atomizer offers three flame options: Air/Acetylene is the standard configuration with the N2O/acetylene and Air/LPG as options.
Air/Acetylene
The Air/Acetylene flame uses a 100mm single slot burner for the standard configuration
The high sensitivity (Cu 2ppm>0.280Abs) is due to the efficiency of the fixed position glass nebulizer fitted as standard. An acid resistant replacement is available as an option.
The flame can be easily set from blue lean flame through stoichiometric to fuel rich by means of computer control
N2O/Acetylene
The N2O/Acetylene flame uses a 50mm single slot burner and is available as an optional extra.
This flame configuration is used to measure elements less prone to ionization such as Aluminum, Tin, Titanium, Calcium, Vanadium and Molybdenum.
Switching from Air/Acetylene to N2O/Acetylene to Flame Off is fully controlled by the AAWin Pro software
Air/Propane (LPG)
This flame uses a 3 slot burner and with the low pressure requirement it is also much safer to operate
Due to the low temperature of the flame it is ideal for analyzing alkali metals such as Potassium, Sodium and Lithium, especially when used in the emission mode.
Some remote areas of the world have difficulty obtaining Acetylene gas of a high enough purity to operate the flame correctly. LPG can give a real alternative and offer comparable results for most elements throughout the wavelength range.
Safety Features
Pressure monitoring for all gases
Burner identification
Flame sensor
Drain trap level sensor
Gas leak detector
Over pressure in premix
Safety cut off switch
Graphite Atomiser Features
The integrated Graphite Furnace Atomiser is available in two instrument configurations.
In the AA500G instrument the graphite furnace head is fixed into the light path so alignment with the optical path is simple and accurate
In the AA500FG instrument the graphite furnace head is fixed behind the flame atomizer assembly and is motorized into position by a simple operation in the AAWin Pro software. The positions for the flame and graphite are saved making it easy to swap between modes for different analysis
The temperature of the transversely heated graphite tube is accurately controlled by means of a precision feedback system and has been designed to reduce analytical problems normally associated with this type of technique.
Pyrolytically coated graphite tubes are used as standard and are manufactured to improve performance as well as increase the analytical life
Platform graphite tubes are supplied as standard and will accept volumes up to 20μl. Non-platform graphite tubes are also available as an optional extra
Up to 10 heat stages are available for the programming of the graphite atomizer. These can be set and stored within the AAWin Pro software
The graphite tube is held in position by means of a gas piston. Replacement of the graphite tube is performed by a simple command in the AAWin Pro software.
The graphite tube is efficiently cooled by an additional water circulation system (supplied separately)
Safety Features
Argon gas pressure sensor
Water flow sensor
Over temperature sensor
Broken graphite tube protection
Applications:
Agricultural
Clinical
Environmental
Food
Metal
Mining
Geological
Pertrochemical
Pharmaceutical
Specifications:
| Spectrometer System |
| Wavelength range | 190-900nm |
| Light source | Hollow cathode lamp (HCL), Deuterium Arc lamp (D2) |
| Modulation | Square wave pulse |
| Modulation frequency | 100hz self reversal (SR) background, 400hz Deuterium Arc (D2)
background |
| Monochromator |
| Grating | 1800 grooves/mm diffraction grating |
| Blazed wavelength | 250nm |
| Focus | 300nm |
| Bandwidth | 0.1, 0.2, 0.4, 1.0, 2.0, 5.0nm |
| Scan mode | Automatic |
| Photometric type | Single beam |
| Wavelength accuracy | +0.15nm |
| Wavelength resolution | 0.2nm+0.02nm |
| Wavelength reproducibility | <0.05nm |
| Baseline stability | 0.005A/30min |
| Stray light | ≤0.12%T(220nm NaI, 340nm NaNO2) |
| Background correction | Deuterium Arc (D2) 1.0Abs, Self Reversal (SR) 3.0Abs |
| Flame Analysis |
| Flame types | Air/Acetylene, Nitrous Oxide/Acetylene, Air/Propane (LPG) |
| Sensitivity (Cu) | 2μg/ml Absorption >0.280Abs |
| Characteristic concentration | Cu<0.02μg/ml, Ba<0.15μg/ml (N2O/Acetylene) |
| Detection limit | Cu<0.004μg/ml |
| repeatability | Cu<0.7% (Air/Acetylene Flame)
Ba<1.0% (Nitrous Oxide/Acetylene Flame) |
| Burner heads | Titanium alloy |
| Nebulizer | High efficiency glass, Acid proof available as an option |
| Pre-mix chamber | Corrosion resistant |
| Atomizer selection | Automatic changeover (AA500FG), |
| Safety features | Burner identification, flame sensor, gas leak sensor, low gas pressure sensor,drain trap sensor, power loss protection |
| Graphite Furnace Analysis |
| Graphite head | Transversally heated |
| Temperature range | Ambient-2650ºC |
| Heating program | Up to 10 steps. Drying, Ashing, Atomization, Cleaning |
| Feedback | Voltage and optical temperature control feedback |
| Sensitivity (Cu) | 50ng/m Absorption>0.40Abs |
| Detection limit | Cd<0.004ng/ml |
| Repeatability | Cu<2.0%, Cd<2.0% |
| Graphite tubes | Pyrolytically coated with platform |
| Sample size | Up to 20μl |
| Graphite cooling | Water circulator available |
| Safety features | Argon pressure sensor, water flow sensor, over temperature sensor, brokentube protection |
| Data Processing |
| Operating program | AA Win Pro software |
| Analytical methods | Flame AA, Flame AE, Graphite Furnace, Hydride Generation |
| Readout Mode | Continuous, manual, peak height, peak area |
| calibrations | Multi-standard calibration, standard addition, interpolation |
| Data storage | Analytical results, instrument and measurement parameters, signal profile,calibration curve |
| Power Requirements |
| Main unit | 220Vac 50/60hz 200W |
| Graphite power supply | 220Vac 50/60hz instantaneous power 5KW current rating |
| Dimensions | |
| Main unit | 110x54x54cm 75kg |
| Graphite power supply | 50x54x54cm 70kg |
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Adres:
No. 3 Pingsan Road, Pinggu District, Beijing, China
Soort bedrijf:
Fabrikant/fabriek
Zakelijk Bereik:
Instrumenten & Meters
Certificering Van Managementsysteem:
ISO 9001, ISO 14001
Bedrijfsintroductie:
Beijing Purkinje General instrument Co., Ltd. is opgericht in 1991 en is een moderne hightech onderneming die R&D, productie en verkoop van UV-vis-spectrofotometers, atoomabsorptiespectrofotometers, een continue en automatische waterkwaliteitsanalysator, röntgenfluorescentie, hoogwaardige vloeistofchromatograaf (HPLC), etc.
integreert. Het bedrijf heeft ISO9001-certificering behaald en in 1999 de ISO14001-certificering behaald. Het bedrijf beschikt over een productiebasis van 36, 000 m2, een eersteklas R&D-team, en kantoren in onder andere Beijing, Shanghai, Guangzhou en Xi′an. De binnenlandse handel omvat 33 provincies, steden en gemeenten, terwijl de internationale markt zich snel uitbreidt, met producten die worden verkocht aan tal van landen en regio′s, waaronder Azië, Europa, Noord-Amerika, Zuid-Amerika en Afrika.
Bovendien heeft het bedrijf talrijke eretitels gewonnen, zoals "State Key New Product", "Recommended Product for China′s Entry in the WTO" en "Beijing Key Non-Governmental Enterprise".
