Decocent is a kit that enables to apply an improved version of Kubica (“sodium hydroxide - N-acetyl-L-cysteine) decontamination and concentration method. It is designed to eliminate the disadvantages of this method. Thanks to its pH indicator and its original neutralization buffer, it allows better and easy adjustment of the final pH of the processed sample. Decocent provides,all the materials needed for processing the samples. It eliminates the problem of cross-contamination while saving time and effort.