QAsh achieves fast ashing times by combining in-situ airflow with a microwave. It has a large floor area to accommodate a large number of samples and is suitable for polymers, oils, food, pulp, sludge, and many other sample types.
Microwaves coupled with SiC are known to produce high temperatures at a much faster rate compared to old electrical heating furnaces. QAsh has a software controlled air inlet inside the ashing chamber which fuels the ashing process. The introduction of air at the source pushes ashing by-products out. An alumina fibre ashing chamber helps retain heat. This provides an efficient ashing process. Vertically placed SiC plates, in conjunction with ceramic insulation, create uniform temperatures across the ashing chamber. The R type thermocouple is encapsulated in a chemical resistant material. It measures temperatures accurately over the working range of 25°C to 1,200°C.
Software controlled compressed air or nitrogen gas are introduced into the chamber to draw out fumes and soot. The built-in fan and external blower purge hot gases for safe disposal and results in a cleaner system interior and a cooler exterior. This assists in maintaining a comfortable working environment. The exhaust port has a filter trap to prevent particulate matter and other ashing by-products from entering the exhaust fan thus increasing the life of the exhaust fan..