Abstract: Device to extract organic chemical compounds from particulate material (MP) that comes from atmospheric samples, using solvents heated by the application of focalized microwaves (MW), performed in open systems, which consists of: a magnetron; an electronic control circuit of the magnetron; a distillation flask that holds the solvent with the sample to be heated; a filter for blocking microwaves, which allows getting out the vapor produced by the ebullition of the solvent with the sample to reach a reflux medium that allows condensing that vapor; and a waveguide connected at one extreme with the magnetron and electronic control circuit, and at the other extreme with the distillation flask to be heated, the microwave blocking filter and the reflux medium.

Abstract: Device, system and operation method to perform functions in a semiautomatic manner, which permits the most favorable condition to evaporate a plurality of environmental samples that are diluted in solvents, by means of gas sweeping, preferably nitrogen, and a control electronic system that permits the superficial evaporation of the solvent thanks to exposing a cold sample kept at a constant temperature to a controlled gas flux. Furthermore, safety measures are considered to protect the extract, such as: acoustic and luminous signals that inform when it has been reached a critical moment in the process, reduction of gas flux during the last stage of the evaporation and valves to completely shut off the gas flux if a determined time period is exceeded.

Abstract: The present invention provides a system and method for automatic extraction of gaseous atmospheric contaminants (for example HAPs and PCBs) with toxic properties, which are retained in polyurethane foam filters (PUF) that consists of: An automatic extraction device, which allows extracting chemicals compounds of interest using a sequence of organic solvents where the PUF must be immersed in, by means of a process of extraction based on compression and decompression cycles of the PUF; and A drying device which permits to dry the cleaned PUF, from the previous process, by means of sweeping the solvent with hot gaseous ultra pure N2, eliminating the solvent until achieving the dryness of the PUF.

Abstract: Device to extract organic chemical compounds from particulate material (MP) that comes from atmospheric samples, using solvents heated by the application of focalized microwaves (MW), performed in open systems, which consists of: a magnetron; an electronic control circuit of the magnetron; a distillation flask that holds the solvent with the sample to be heated; a filter for blocking microwaves, which allows getting out the vapor produced by the ebullition of the solvent with the sample to reach a reflux medium that allows condensing that vapor; and a waveguide connected at one extreme with the magnetron and electronic control circuit, and at the other extreme with the distillation flask to be heated, the microwave blocking filter and the reflux medium.