Overview of Sichuan TAS-986 Atomic Absorption Spectrophotometer:

As an important means of determining trace metal elements, it has the advantages of high sensitivity, good accuracy, and fast analysis speed. It has been widely applied in various fields such as geology, metallurgy, materials, medicine, environment, and chemistry, and is now becoming a very important instrument analysis method.

main features

Highly automated
The structural design of the integrated flame atomizer and graphite furnace atomizer has achieved automatic switching between the flame and graphite furnace atomizers;
Adopting an eight lamp automatic switching turret and pre optimizing the working conditions of the hollow cathode lamp;
Automatically set gas flow rate, select element analysis * combustion assistance ratio;
Automatic setting of flame height and front and rear positions, selecting optimal analysis conditions;
Automatically switch into the semi transparent and semi reflective mirror device when using deuterium lamp to fasten the background;
Automatic wavelength scanning and peak searching;
Automatically changing spectral bandwidth, available in five levels: 0.1nm, 02nm, 0.4nm, 1.0nm, and 2.0nm;
Automatically adjust negative high voltage, lamp current, and two-way light balance;
Automatic flow setting, automatic ignition, and automatic shutdown protection.

Advanced graphite furnace design
The design of the graphite furnace body is unique. By adopting advanced transverse heating graphite furnace technology, the temperature uniformity of graphite tubes has been achieved, reducing chemical interference and memory effects, while lowering the atomization temperature. Not only does it improve atomization efficiency, but it also extends the service life of graphite tubes and enhances analysis accuracy.
The graphite furnace power supply adopts computer-controlled power temperature control, and during the atomization stage, ordinary heating and high-power heating can be selected. At the same time, there are four possible combinations for selecting the internal air flow rate.
Adopting pyrolytic coating LVOV platform graphite tube.

Comprehensive security measures

Flame monitor: Use sensors to monitor changes in the flame at any time. When the flame goes out due to unexpected power outages or operational errors, the instrument will automatically turn off the acetylene gas and prompt an alarm.

Acetylene leakage alarm: Monitor the concentration of acetylene in the instrument and working environment at any time. Once it exceeds the warning concentration, an alarm will be triggered immediately, accompanied by an audible prompt.

Abnormal pressure monitor: When using air acetylene flame analysis, the air pressure monitor constantly monitors changes in air pressure. When an abnormal situation occurs, it automatically cuts off the acetylene gas and safely shuts off the engine.

Comprehensive graphite furnace protection measures: The instrument simultaneously monitors the protection air pressure, cooling water flow rate, and whether the graphite tube is broken. When any abnormal fluctuations occur, heating will be immediately stopped and an alarm will be triggered.

Optional flame automatic sampler and automatic temperature control circulating cooling water device
The flame automatic sampler can perform automatic injection of standard samples and samples under conventional analysis conditions;
The automatic temperature control circulating cooling water device, when used in conjunction with a graphite furnace type atomic absorption spectrophotometer, can reuse the cooled water of the instrument, saving water and reducing measurement costs.

Technical Parameter