Used for atomic absorption analysis in flameless heating methods, it is an important supporting equipment for 4530F and 4510F atomic absorption spectrophotometers. It is an instrument specifically designed for the determination of trace metal elements. It injects the tested sample into a graphite tube, and under inert gas protection, heats it at different temperatures to remove moisture from the sample during the drying stage, remove matrix interference during the ashing stage, and not lose the content of the tested element in the original sample. The atomization stage fully atomizes the tested element in the sample, allowing for sensitive and accurate determination of the content of the tested element in the sample. Finally, the residual sample left in the graphite tube is removed through a high-temperature cleaning stage.

Main functions and technical indicators:

● It has the function of protecting the gas path:

a) Control the opening and closing of two protective gases inside and outside the graphite tube;

b) The gas inside the tube has a small flow regulation function

● Equipped with alarm function:

a) Equipped with an alarm function for insufficient inert gas pressure, capable of stopping program execution;

b) Equipped with furnace overheating alarm function:

● Equipped with high-power heating function: (1500℃ ~ 3000℃)

● Equipped with manual heating function: (1000℃ ~ 3000℃)

Protective gas: argon gas (purity above 99.99%, inlet pressure ≥ 0.25MPa)

Cooling water: Clean water source flow rate not less than 2L/min

● Display mode: The graphite furnace interface is displayed by the host workstation

● Communication port: RS-232

● Heating steps: 20 steps

● Nominal temperature: 20℃ ~ 3000℃

● Slope heating time: 0s ~ 999s

● Maintain heating time: 1s~999s (the sum of slope heating time and holding heating time should not exceed 999s)

Test the Cu characteristic quantity of the sample online with an atomic absorption instrument: ≤ 1X10 g

Measurement repeatability: ≤ 3% (Cu)

● Detection limit: Cd≤1.0X10g

Background correction capability: When the background attenuation signal is 1Abs, the product has more than 50 times the background correction capability

● Detection limit: Cd≤1.0X10 g

● Linear error: Cd≤15%

● Repeatability: Cd≤3%

● Power supply: AC220V±22V，50Hz，30A，6600W

● Instrument size: 280mmX550mmX420mm

Net weight: 60kg