Low relative standard deviations (≤7 %) were achieved with this material. Viscose was evaluated as the most effective wipe material. The resulting values of observed recovery were negatively influenced by the volatility of the analyte, the porosity of the matrix and the time that passed since the contamination. The effect of transport on the change in the observed recovery value was investigated and the measurement deviations of the wipe method were discussed. Furthermore, the time decrease of surface contamination was monitored. Optimization of the procedure was carried out in terms of the choice of wiping material, wetting solvent and extraction of the wiped contaminant. This work deals with the optimization of the wiping process of the surfaces of selected matrices contaminated with bis(2-chloroethyl)sulfide and tris(2-chloroethyl)amine. An alternative to collecting the respective sample is to perform a wipe of surface contamination. Effective sampling is a key step in the process of proving the use of chemical weapons.
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