ViralFX™ Leaves No Residue

Why does ViralFX™ sometimes leave residues?

Occasionally when ViralFX™ solution is used on a surface as a spray but particularly as a wipe a white residue can sometimes be left behind. This white residue is normally the surfactant. If you frequently find that a residue is left behind it means simply that you are using too much solution on the surface. But in any event the residue can easily be removed afterwards with a dry paper towel.

There are occasions when it is extremely important to ensure that there are no ViralFX™ residues left on the surface. One such example would be when ViralFX™ is used for cleaning and disinfecting the tubing within an analysis machine. Any residues of ViralFX™ left behind could chemically interfere with assays which take place subsequently.

The way to test for ViralFX™ residues is to test the rinse or flushing water which is used as the final step in the decontamination procedure. All laboratories should have in their possession simple starch iodide paper. This is white but when dipped into a solution of ViralFX™ or other oxidising system it will turn blue. Therefore, if the starch iodide paper turns blue then ViralFX™ has not been removed and the rinsing flushing must take place again until the starch iodide paper stays white.