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Needle filter

Needle filter

Jan 20, 2020

In HPLC analysis, the chromatographic column packing has a small particle size and is easily clogged with foreign particles, so samples and solvents need to be filtered in advance to remove particulate contaminants and protect the instrument. The ion chromatography commonly used in environmental analysis also requires that no inorganic pollutants be introduced into the sample pretreatment. Needle filters can be used in HPLC analysis and IC analysis. Filtering the sample solution is an important step in the sample pretreatment process.