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 parameters:

● Heating steps: 20 steps

● Nominal temperature: 20 ℃~3000 ℃

● Slope heating time: 0s～999s

● Maintain heating time: 1s-999s (the sum of the slope heating time and the holding heating time is not greater than 999s)

Online testing of sample Cu characteristic quantity with atomic absorption instrument ≤ 1 × 10-11 g

Measurement repeatability ≤ 3% (Cu)

Inert gas required: argon gas (purity above 99.99%), inlet pressure of 0.3MPa

● Detection limit: Cd≤1.0x10 g

Cooling water: tap water or circulating water, with a water source flow rate of not less than 2L/min

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

● Equipped with gas pressure under pressure alarm and furnace overheating alarm functions

● Equipped with RS-232 interface for communication with atomic absorption host

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

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

Power supply: 220V ± 22V, 30A, Approximately 5000W at 50Hz and 2700 ℃

● Size: 280mm × 550mm × 420mm

Net weight: 60kg