The importance of filtering the extracts to be analyzed with regards to the maintenance of analytical instrumentation cannot be considered exaggerated. Particulates commonly found in extracts can quickly damage instrument components, resulting in wasted time and the need for repairs. Chromatography columns, injectors, detectors, and tubes with small internal diameters can easily become clogged by particulates. Even if there is no clogging, the slow accumulation of particles over time can cause reduced flows and create interference that reduces overall reproducibility.

Clean samples will significantly extend the life of chromatography columns and spare parts, especially for HPLC systems, allowing significant savings in overall costs. Filtration of the sample for the removal of particulates can be easily done with the use of syringe filters, simple to use and at a low cost. The properties of these membranes are different and the choice of the most appropriate one should be made based on the characteristics of the matrix and the solvent.With the female Luer-Lok® connection on the inlet and male push-in connection on the outlet, the filter adapts perfectly to the disposable syringe containing the sample.The extract is transferred with light pressure through the filter into the sample vial, eliminating harmful particulates from the final extract. The connection can be implemented by the use of Luer-Lok® tip syringes, thus creating a more secure connection capable of withstanding higher pressures. The wide choice of varieties of filters available, keeping in mind the importance of the diameter, the size of the pores and the type of membranes, will facilitate the choice of the filter best suited to your needs. The volume of the sample to be filtered will determine the choice of diameter, so that the filter is not overloaded.

The choice of porosity depends on the type of application and, in the case of HPLC analysis, on the diameter of the particles of the column packing. Investing in syringe filters is an economical way to reduce variability in results and protect your equipment. Chebios offers a wide choice of Syringe filters that are easy to identify thanks to the colour, which is different for each type and design. Contact us for further information and to know the prices of our syringe filters.