This product is a high-end atomic absorption replacement product developed and produced by Beijing Raleigh Analytical Instrument Co., Ltd. It has many advantages such as novel structure and excellent performance: a patented dual lamp dual atomizer integrated structure (patent number: ZL2004 2 0003482.8）。 The flame and graphite furnace atomizers alternate using the shortest optical path to reduce energy loss, analyze that the light sources do not interfere with each other, and save testing time. Atomizer does not require switching or moving, with accurate positioning to ensure analysis accuracy.
Adopting a constant magnetic field transverse Zeeman effect background correction system. Realize high background absorbance (up to 1.8Abs) correction of full band dual atomizers, with the advantages of baseline drift deduction, saving preheating time, and improving analysis accuracy.
Integrated structure of host and graphite furnace power supply. Save instrument space, reduce power loss, and improve heating efficiency.
The graphite furnace analysis method is equipped with an automatic injection system, with an injection volume range of 1-100 μ l; The minimum injection volume is 1 μ l, with high injection accuracy and good repeatability, which can completely replace the entire process of manual injection. And it has a series of automation functions such as automatic dilution, matrix improver, automatic configuration of working curve, large-scale cleaning, free switching between single step injection and continuous automatic injection, making the graphite furnace analysis method more accurate, stable, and reliable.
The operating software with intelligent analysis quality control function, combined with the graphite furnace automatic sampler, can truly achieve full automation of analysis experiments.
The gas path control of flame analysis method adopts a flow automatic control system. The system directly receives control signals sent by the operating software and automatically sets the flow rate of acetylene gas based on this signal. This function makes the controlled gas flow more accurate, with better repeatability, and simplifies the process of repeatedly adjusting the flow rate. The system also has automatic ignition function, as well as alarms for abnormal flameout, gas leakage, air under pressure, excessive controlled gas flow error, and multiple safety automatic protection functions, greatly improving the automation level and safety of flame analysis methods.
The instrument has a high-performance hollow cathode lamp power supply system. The high-performance hollow cathode lamp has the advantages of high spectral line intensity and low background, and the luminous intensity is 3-15 times that of ordinary hollow cathode lamps. Beneficial for improving the analytical performance of instruments.
Brand new circuit design, utilizing next-generation electronic components and circuit structures to enhance instrument accuracy and reliability.
The computer automatically controls the selection and adjustment of various analysis parameters of the instrument, such as wavelength, spectral bandwidth, and elemental testing conditions.
The operating software is a fully localized application in the Windows XP operating system environment, which is easy to use and has a user-friendly interface. The multi window structure design can achieve simultaneous display of multiple windows.
A reliable security monitoring and protection system that enables full monitoring of unexpected faults such as on/off and leakage in instrument water, gas, and electricity supply systems.

1. Wavelength range: 190-900nm
2. Light source system:
(1) Dual lamp holder with 8 lamp positions for automatic light source conversion (including 2 X 2 lamp holders that can be plugged into high-performance hollow cathode lamps)
(2) Lamp power supply method 200Hz square wave pulse
(3) Lamp current regulation range 0-15mA
3. Optical system:
(1) Monochromator type Czerny Turner type
(2) Grating line density 1800 lines/mm
(3) Focal length 430nm
(4) Sparkling wavelength 250nm
4. Spectral bandwidth:
(1) Flame method 0.2 0.4 0.8 1.6nm
(2) Graphite furnace method 0.2 0.4 1.2nm
5. Atomization system:
(1) Flame atomization system
10cm single seam all titanium burner
Direct molding of corrosion-resistant materials for atomization chamber
Spray metal sheathed high-efficiency glass spray
Position adjustment, flame height adjustable
(2) Graphite Furnace Atomization System
Temperature range: Room temperature to 3000 ℃
Heating rate 3000 ℃/s
Graphite tube size 30mm (length) X 7mm (outer diameter)
6. Background correction system
(1) Flame constant magnetic field Zeeman background correction magnetic flux 1.0 T
(2) Graphite furnace constant magnetic field Zeeman background correction magnetic flux 1.0 T
7. Graphite furnace automatic sampler
(1) Sample disk capacity, 55 sample cups, 6 reagent cups
(2) Standard cup volume Sample cup 2ml Reagent cup 20ml
(3) Minimum injection volume 1 μ L
(4) Repeated injection times 1 to 99 times
(5) Sample cup material: polypropylene
(6) Sample injection system 100 μ L and 1mL precise metering dual pump system

Technological innovation points
(1) Integrate the instrument related functional components as much as possible. Including the parallel placement of flame and graphite furnace atomization systems, eliminating the need for position adjustment procedures for exchanging the two systems, which facilitates the rapid exchange and use of the two analytical techniques; The graphite furnace is integrated with the power supply to reduce power consumption and improve heating rate.
(2) The various functional components of the instrument should be modularized and intelligent as much as possible. The lamp control unit, flame atomizer, graphite furnace atomizer, graphite furnace power transformer, water and gas supply control unit, light source power supply unit and other components of this prototype have all been modularized or intelligent.
(3) Minimize the adverse effects caused by the attenuation of light source radiation energy due to the use of constant magnetic field Zeeman background correction technology as much as possible. Firstly, the prototype selected dual light sources to conduct light beams through a dual atomizer structure. Compared with other optical paths, it has the advantages of the shortest optical path, the least number of mirrors, the least energy loss, and the least lamp replacement program, and has obtained a utility model patent. Secondly, attention should be paid to improving the reflectivity of optical components, selecting gratings with high diffraction efficiency and photomultiplier tubes with high sensitivity, and striving to improve the instrument's signal-to-noise ratio as much as possible.
(4) The instrument has implemented an open architecture based on CAN bus technology, which brings great convenience to future upgrades and secondary development, and enables the intelligence and modularization of various functional components. The new architecture simplifies the wiring between components, which is conducive to improving the reliability of the instrument. The circuit system should adopt new components and devices as much as possible, reduce the number of parts, and improve circuit integration. New amplification and transmission technologies have been widely adopted in signal processing, greatly improving the reliability and maintainability of instruments. In the graphite furnace control power supply, digital control technology with intelligent discrimination and flat mounted power devices are adopted, greatly improving circuit integration, strong anti-interference ability, simple debugging, and good interchangeability. The software is designed for analysis projects, which is a common approach adopted by advanced foreign software. With the cooperation of an automatic sampler, it can automatically perform sequential analysis of multiple elements.
(5) Selecting new permanent magnet materials with large magnetic energy product to improve the magnetic flux density of magnetic steel components is beneficial for enhancing instrument analysis sensitivity.
(6) The streamlined overall shape of the instrument is smooth, beautiful, and humanized. (Applied for design patent)