This detection harmful substances in the solid sample

摘要

Process for the detection of noxious substances, which are extracted from solid samples by washing in a liquid and which are transformed of the liquid phase in the gaseous phase by introducing a stream of gas through the extraction liquid, and then detected. / p & & p & in order to improve the sensitivity of detection, it is provided to extract the harmful substances with the aid of a solution of surfactant - active anionic or amphoteric.