A3AFG

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◆Flame mode
The flame atomizer offers three flame options. All three flame configurations offer coded burner for full safety protection.
Air/Acetylene:
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:
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 AAWin3.0 software.
Air/Propane (LPG)
Due to the Iow 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.

◆Graphite furnace temperature control
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.

◆Graphite tube
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 50ul. Non-platform graphite tubes are also available as an optional extra.

◆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
Water flow senor
Over temperature sensor
Broken graphite tube protection

Elements are atomized by heating in a flame or a thermal decomposition graphite furnace, forming atomic vapor in its ground state. This vapor selectively absorbs the characteristic radiation emitted by a hollow cathode lamp. Within a certain concentration range, the absorption intensity is directly proportional to the content of the measured element in the test solution. The quantitative relationship can be described by the Lambert-Beer law, A = -log(I/Io) = -log(T) = KC, where I is the intensity of transmitted light, Io is the intensity of emitted light, T is the transmittance, L is the optical path length through the atomizer (which is fixed for each instrument), and C is the concentration of the sample being measured. Therefore, A = KC. The device used to measure the absorbance of atomic vapor through the resonance radiation of the element being measured is called an atomic absorption spectrophotometer. Its basic structure includes a light source, an atomizer, an optical system, and a detection system. It is mainly used for the analysis of trace elements and impurities, and has the two major advantages of high sensitivity and good selectivity. It is widely used in the analysis of trace elements in various gases, metal organic compounds, and metal alcohol salts.

◆Agriculture
A3AFG is used to analyze soil and plant tissues for the presence of essential elements such as nitrogen, phosphorus, and potassium. This information is important for optimizing crop yields and for ensuring that plants have the nutrients they need to grow.

◆Environmental science
A3AFG can be used to analyze soil, water, and air samples for the presence of heavy metals such as lead, mercury, and cadmium. This information is critical for understanding the impact of human activity on the environment and for monitoring compliance with environmental regulations.

◆Food science
A3AFF is used to analyze food samples for the presence of toxic elements such as arsenic and lead. This information is critical for ensuring that food products are safe for human consumption.

◆Pharmaceuticals
A3AFG is used to analyze drug formulations for the presence of impurities and contaminants. This information is important for ensuring that drugs are safe and effective for human use.

◆Metallurgy: A3AFG is used to Detection of harmful elements or impurities in metal products.

◆Petrochemical: Process control of petrochemical production, finished product testing, etc.

◆Commodity inspection: A3AFG is used for the control of industrial production process and the analysis of organic and intermediate products, such as the detection of cosmetics, meat, aquatic products, alcohol, oral liquid, tea and other products.

◆Administrative department of Goverment：A3AFG is applied to the detect the heavy metal elements in water plants, sewage treatment plants, power plants, judicial organs, etc.

◆Research and Education: A3AFG is used for various research work and departments in University