Speaking of needle filters, everyone may be unfamiliar with them. Below, the price of needle filter membrane manufacturers will take you to understand what this product is.
The housing material of the needle filter is made of high-quality sanitary polypropylene material, and the product structure is precisely designed to ensure smooth filtration. , the internal space is rationalized and the residue rate is very low, thus reducing the waste of samples. In HPLC analysis, the particle size of the chromatographic column packing is small and is easily blocked by impurity particles. Therefore, the sample and solvent need to be pre-filtered to remove particulate contaminants and protect the instrument. The ion chromatography method commonly used in environmental analysis also requires that inorganic pollutants cannot be introduced during sample pretreatment. Needle filters can be used in HPLC analysis and IC analysis to filter sample solutions, which is an important step in the sample pretreatment process.
There are also many choices for filter membrane materials. Here is a brief introduction to two of them: Hydrophilic PTFE: chemically resistant, soft, heat-resistant, non-stick, High strength; typically used for filtration of aqueous solutions; Hydrophobic PTFE: chemically resistant and soft typically used for filtration of organic solvents and gases, and particle monitoring 0.1 µm: removal of mycoplasma 0.20 to 0.22 µm: filtration as well as ultra-clean filtration of aqueous solutions and organic solvents ( e.g. HPLC, UHPLC) 0.45 µm: Sterile syringe filters for clarifying aqueous and organic solvents can be used for solutions or clarifying sterile solutions, while non-sterile syringe filters are used for general filtration and sample purification.
The ptfe bubble point membrane series currently independently developed and produced can be used as needle filter membrane materials, with 0.1 micron and 0.22 micron , 0.45 micron, 1 micron pore size, of which 0.1, 0.22, 0.45 micron are needle filter membranes. Available in two categories: hydrophobic and hydrophilic. Widely used in organic solvent filtration and air filtration. Interested parties are welcome to enter the store and consult us.
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