Low temperature plasma ashing apparatus

Introduction to CIF Low Temperature Plasma Ashing Instrument
Under high-frequency electrical action, oxygen plasma is excited, which has strong chemical ability and can oxidize and decompose organic matter in the sample at lower temperatures. Adopting a high-frequency generator (13.56MHz) for fully automated control, it is easy to operate and does not damage the inorganic components in coal under low temperature conditions, while eliminating carbon containing organic macromolecules.

Organic matter only undergoes alleviation decomposition on the surface of the substance in contact with atomic oxygen at low temperatures, and the entire sample is not heated, which is a non-destructive removal of organic matter. Due to the low ashing temperature, it can prevent the occurrence of elements and has a higher recovery rate compared to other methods, making it suitable for ashing samples containing volatile elements or nuclear elements. Low temperature ashing will not cause changes in the sample's organizational structure (such as dissolution, coking, etc.), and inorganic substances will not undergo thermochemical reactions, preserving the chemical composition of their inorganic substances and the fine structure of their crystal lattice. In addition, this method ensures that the samples are not contaminated during ashing in a closed environment, and there is no external contamination caused by the addition of reagents like in wet ashing.

Product features of low-temperature plasma ashing instrument:

• 7-inch color touch screen with interactive operation interface in both Chinese and English, automatic control and monitoring of process parameter status, 20 formula programs, and traceable process data storage.

• The PLC industrial computer controls the entire cleaning process, with two working modes: manual and automatic.

• The quartz vacuum chamber and vacuum piping system are made of 316 stainless steel material, which is corrosion-resistant and pollution-free.

• By using a mass flow meter, precise control of gas input can be achieved, changing the problem of inaccurate gas flow control in traditional float flow meters.

• HEPA high-efficiency filtration, gas backfilling and purging to prevent secondary pollution.

• Adopting a showerhead style porous air intake method to address the issue of uneven single hole air intake in traditional plasma cleaning machines

• The ashing process has a low temperature and does not damage the integrity of the mineral composition and structure of the sample.

• The rotating chamber rotates in a vacuum environment, driving the sample to roll and achieving uniform and sufficient ashing of the sample.

• High degree of automation, able to operate continuously for more than 10 hours without manual intervention.

• Samples can be loaded using a rotary bottle or a traditional quartz boat for ashing, making it a versatile machine with high cost-effectiveness.