Importance of analytical integrity testing of syringe filters

Filtration is usually a critical step in operation, so the integrity test of the syringe filter is very important, and its significance lies in:

1. Confirm the actual filtration pore size of the membrane

2. Check if the filter is well encapsulated

3. Detection of damage

4. Confirm correct installation

5. Confirm that the filtration system achieves verification performance

Integrity testing is our product certification and production quality control, which is the company’s standard operating procedures

What is the performance of the syringe filter

Provide a disposable syringe sample filter that mixes cellulose membrane, nylon membrane, PVDF membrane of polyvinylidene fluoride to meet users’ different requirements for filtered sample volume and chemical compatibility.

The organic phase/organic syringe filter adopts PTFE (polytetrafluoroethylene) microporous membrane, which has good chemical compatibility. It has excellent chemical resistance to general HPLC organic solutions such as methanol, acetonitrile, n-hexane, isopropanol, etc. Soluble. Can be used to filter organic solvent samples.

The aqueous/aqueous syringe filter uses a polyethersulfone (PES) microporous membrane. It is used for filtering water-based solution samples, not suitable for filtering organic solvent samples. The disposable syringe filter allows both aqueous and organic solutions to be filtered quickly and effectively.

Syringe filter performance: suitable for water system and various organic solvents, resistant to all solvents, low solubility. It has the characteristics of air permeability and water impermeability, large air flux, high particle retention rate, good temperature resistance, resistance to strong acids, alkalis, organic solvents and oxidants, resistance to aging, non-stickiness, non-flammability, non-toxicity, and biocompatibility. Its related products are widely used in chemical, pharmaceutical, environmental protection, electronics, food, energy and other fields.

What is the purpose of the syringe filter

The syringe filter is a fast, convenient and reliable filter tool that is routinely used in laboratories. It has a beautiful appearance, light weight and high cleanliness. It is mainly used for sample prefiltration, clarification and removal of particles, and sterilization and filtration of liquids and gases. It is the preferred method for filtering small samples of HPLC and GC.According to the sterilization method, it can be divided into sterilization and non-sterilization. The following editor will introduce you to the purpose of the syringe filter:

1. Removal of protein deposits and dissolution determination

2. Beverage and food testing analysis and biofuel analysis

3. Sample pretreatment

4. Environmental monitoring and analysis

5. Analysis of medicines and original liquid products

6. Liquid gas chromatography sample preparation and specific QC analysis

7. Gas filtration and fluid detection