Category:Spectroscopy
Model:AA 5000
Overview:AA 5000 is a fully automated Flame and Graphite Furnace AAS with Double Beam optical system. The instrument and all accessories are controlled by PC software.
Dual Optics combined for single beam and double beam mode
True double beam developed optical noise reduction technology
Automated 8-lamp turret with independent lamp power supply for each lamp
Non-coded lamp and coded lamp can be used
Auto setting of burner height for each element
Integrated furnace color camera for observation of sample injection and sample drying in the graphite tube
System Design
Optical System True double beam
Monochromator Czerny-Turner type with 2 focal lengths at 355.8 and 345.6nm
Wavelength Range 180-900nm
Grating Holographic diffraction with 1800 lines/mm
Wavelength Accuracy ±0.3nm
Sensitivity (Cu) Approx. 0.9A at 5ppm, RSD≤0.5%
Slits 0.1, 0.2, 0.4, 0.7, 1.4, 2.0nm auto selection
Detector Wide range UV sensitive photomultiplier tube (PMT)
Lamp Automated 8-lamp turret with two heating circuits for preheating
Background Correction Deuterium (D2) and Self-absorption
Flame System
Burner All-titanium 100mm and 50mm, auto setting of burner height
Nebulizer Adjustable nebulizer with intemal Platinum/Iridium capillary, PEEK nozzle and fixed ceramic impact bead are supplied
Spray Chamber PPS(Polyphenylene Sulfide)
Gas Control Programmable gas control features software-controlled gas flows with automatic setting of gas flow for each element
Safety Functions Interlocked safety system prevents selection of the nitrous oxide flame if the nitrous oxide burner is not fitted.
Sensor controls for protection to use the incorrect burner head and check the siphon system.
To ensure correct operating fuel gas and oxidant pressures are maintained also to check the flow rate.
In case of thepower failure, safety interlocks will shut down thee gases automatically
Hydride System Determin As, Se, Sb, Sn, Te, Bi and Hg at low microgram per liter (ppb) concentration
Autosampler 85 positions, with on-demand rinse of the probe
Graphite Furnace System
Heating System Integrated computer-controlled Longitudinal Heated Graphite Furnace
Function Analytical furnace programs up to 9 steps can be set up
Temperature Max. 3000℃ with 1℃ increment. Max. linear heating rate is 2000℃/s
Gas Flow PC control. Choice of two inert gases. Separate control of inert gas stream is Argon for internal and external gas flow.
The external gas flow is 1L/min and internal gas flow in the graphite tube can be adjusted up to 250mL/min
Cooling System Closed circuit. Water temperature during operation is approx.25℃
Autosampler 87 positions. Injection volumes from 1 to 50uL with increments of 1uL. Automatic dilutions and additions of three different
modifiers
Safety Functions Warming when cooling water flow failure, gas pressure over, furnace temperature too high, graphite tube broken
Other
Working Condition 10℃ upto 35℃ Rel. humidity max. 85%
Power Supply 110V/220V±10%, 50/60Hz
Dimension 800*800*575mm
Weight 150kg