About HAWACH Syringe Filter and Its PES Filter Membarane

HAWACH syringe filter

There are many lab syringe series in HAWACH, which is convenient for customers to choose the most suitable syringe filter. The syringe filter diameter ranges from 4mm, 13 mm, 25 mm, 33mm, 50mm, and the pore size ranges from 0.1 um to 10um to meet the filtration requirements of different volumetric capacities and different filtration purposes. There are 8 major membrane materials to meet the filtration needs of customers in different research fields.

Also, there are pre-filters and non-pre-filters designed for the different sample medium. Any HAWACH syringe filter is produced and tested under strictly controlled conditions to ensure a good user experience.

HAWACH provides sterile and non-sterile packaging for disposable syringe filters (polyethersulfone membrane) and products with multiple specifications to meet the different needs of users. For example, before performing instrumental analysis (such as HPLC), a HAWACH non-sterile syringe filter can be used to routinely filter samples, which helps users improve experimental results, reduce unwanted peaks, and improve the signal-to-noise ratio and extend the life span of the column.

Please note, the non-sterilization means that the product is not processed and retains its original form after it is produced, and it is mainly used in places where the filtration environment is not too high. Sterilization refers to products that have been processed. For HAWACH current products, they are all processed by gamma rays, which are suitable for sterile environments with extremely high environmental requirements. They are more often used in biological experiments.

Different types of disposable syringe filters have built-in corresponding types of microporous membranes. If users need to further check which type of sample filtration is more suitable for the microporous membranes of this material, please refer to HAWACH's membrane selection chart.

Sterile PES Syringe Filters

PES filter membrane

The filter medium of polyethersulfone syringe filter is the world's most advanced polyethersulfone microporous filter membrane. The pores of the polyethersulfone membrane account for more than 80% of the membrane volume. The micropore opening rate has a unique micropore geometry. The shape improves the filtration efficiency and flow rate of the solution that is difficult to filter.

It is composed of polyethersulfone and polypropylene supporting two materials combined with hot melt, no adhesive, suitable for the chemical and pharmaceutical industries with stricter requirements.

As a hydrophilic filter membrane, the PES filter membrane is produced in clean environment with uniform pore size distribution, high porosity; high flow rate and particle retention rate.

Main features of PES syringe filter

The PES filter membrane features beautiful and lightweight appearance, high cleanliness, various specifications and packaging, easy to use, precise and reliable and cost-effective, which can achieve the greatest use effect at the lowest cost. It has good high temperature resistance and acid and alkali resistance.

To be specific, it has unique hydrophilic properties, without surfactants and surface lubricants, with a high level of filtration accuracy and throughput for filtered solutions, a wide applicable pH range, low adsorption capacity for proteins and valuable biological agents, and high retention rate, excellent chemical resistance and thermal stability, good strength, resistance to forward and reverse pressure shock. What's more, each filter element is integrity tested and rinsed with pure water.

Applications of syringe filter

With low protein adsorption and high drug compatibility, it is specially designed for biochemical, inspection, pharmaceutical and sterilization filtration devices.

1. Filtration of small samples in routine laboratorybr
2. Sample prefiltration
3. Clarify and remove particles
4. Sterilization and filtration of liquid and gas
5. HPLC, GC small sample filtration
6. Pre-filtration for more precise filtration
7. Terminal filtration and point-of-use filtration of high-purity water, ultra-pure water, and deionized water
For the specifci technical parameters, welcome to contact HAWACH for more details.