Use Quartz Filter Discs for Chemical Adsorption
The equipment images in this document may differ slightly from your equipment, however the instructions are the same unless otherwise noted. |
The use of quartz wool is not mandatory, however it can provide extra protection for light powdered samples. |
Wear latex gloves when handling the |
Use quartz filter discs or quartz wool to aid in chemical adsorption sample preparation. Quartz filter discs (placed both below and above powdered samples) not only provide a more uniform sample surface but also keep the analyzer free of sample debris. The filters can be used up to 900 °C.
- Insert a small portion of quartz wool into the sample tube to serve as a support for the powdered sample. Use a filler rod or smaller sample tube to push the quartz wool to the bottom of the sample tube.
- Insert a quartz disc into the sample tube and push it into the tube until it rests on top of the quartz wool. Inspect the disc to ensure that there is a good seal and that the sample will not go past the filter. An additional filter can be inserted if needed.
- Insert a second filter disc on top of the quartz wool. Ensure that the filter is placed high enough into the sample tube for easy retrieval.
- Take the initial tube weight (with both filters).
- Remove the top filter disc. Place it on a clean surface, then use a funnel to add the powdered sample on the bottom filter disc.
- Reinsert the top filter disc into the sample tube, then use a rod or smaller sample tube to push it down until it reaches the top of the sample.
- To remove the quartz wool and disc after analysis, use the quartz wool extractor tool.
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