Qualitative filter paper is frequently adopted in qualitative chemical analysis and corresponding filtration separation. It is generally used to filter the solution in a qualitative test that does not require the calculation of chloride, sulfate, etc.
Quantitative filter paper is used for precision calculation of numerical values, such as determination of residue, insoluble matter, etc. After the general quantitative filter paper is filtered, it needs to enter the high-temperature furnace for processing.
Chromatographic qualitative analysis filter paper is mainly used as a support in paper chromatography analysis with fast, medium and slow speed.