Introduction And Tips Of Using Syringe Filters

Hawach Scientific Syringe filter are to provide fast and efficient water and organic solution filtration solutions, which are suitable for a wide range of applications in pharmaceutical, environmental, biotechnology, food, beverage, and agricultural product testing laboratories. It is made from a variety of membrane filters containing polypropylene housings, and special injection molding processes increase burst pressure and filtration speed.

Syringe filter has being used widely in laboratory, which is a kind of quick, convenient and reliable filtering tool. No need to change its membrane or clean the filter, it saves the time and trouble of so many complicated preparing jobs.

Being artistic and light, it has being widely used in sample pre-filtering, cleaning out particles and the sterile filtration of liquid or gas. Syringe filter is the preferred alternative for HPLC or GC sample filtering, usually matching with disposable syringe, with filter diameter from 4mm to 50mm, and capacity from 0.5ml to 200ml.

In HPLC analysis, the column packing particle size is small and easily blocked by impurity particles, so the sample and solvent need to be pre-filtered to remove particulate contaminants and protect the instrument.

Commonly used in environmental analysis, Ion chromatography also requires the introduction of inorganic contaminants in sample preparation. Syringe filters can be used in HPLC analysis and IC analysis to filter sample solutions as an important step in sample preparation.

Membrane material

There are so many kinds of membrane materials in the market. We can conclude them as following: Nylon, Mixed cellulose, cellulose acetate, polyether sulfone, PVDF, PTFE and glass fibre.

Filtstar Series CA Syringe FiltersWinstar Series PES Syringe FiltersSterile GF (Glass Fiber) Syringe Filters

Products using

Remove protein precipitate and determination of dissolution.
Drink and food detection and analysis, and analysis of biofuel.
Sample pre-handling.
Environment detection and analysis.
Medicine and solution analysis.
Liquid and Gas Phase Chromatogram sample preparing and specific QC analysis.
Gas filtration ans liquid detection.

HAWACH syringe filter

One of the shortcomings of the traditional filter is that it is easy to blast. The HAWACH syringe filter has been specially designed to withstand strong burst pressure. The edge of the filter is threaded for anti-slip effect, and the user-friendly design makes the operator comfortable. Stable filter quality and zero difference between batch and batch ensure the consistency of analysis results. Also, the clear specification mark eliminates the confusion.

Avoid the damage to your equipment in the lab, syringe filters are good tools to remove particles from liquid samples. Perfect for small volumes and reasonable prices , syringe filters are widely used nowadays.

The basic methods for using syringe filters are suggusted as following.

First, load the sample into your syringe.Then you can twist and attach the filter securely. It is about one quarter turn when you a luer slip syringe is used. If the syringe has a luer lock, don’t forget to fix it firmly but not too tight.To prevent air blocks and promotes high flow rates as the sample is spread evenly over the membrane surface, the next important step is to hold the assembled syringe and filter vertically to make the membrane wet evenly.

When you are all set, you can press the syringe plunger to push sample through the filter very gently.for better results, we suggest discarding the first 0.25-0.5ml of your sample. You’d better change the filter if the back pressure ever increases significantly. Don’t press it too much, avoiding filter housing being burst.

1/11/2019