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Double Beam Flame & Graphite Furnace AAS

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.


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Product Features

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

Technical Parameters

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

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