METHOD OF ASSESSING HEAT RESISTANCE OF ORGANOPHOSPHORUS PESTICIDES WHEN PERFORMING DISINSECTION Russian patent published in 2019 - IPC G01N30/00 

FIELD: measuring equipment.

SUBSTANCE: present invention relates to analysis of non-biological materials by physical and chemical methods. Method of assessing heat resistance of organophosphorus pesticides by determining the degree of decomposition of the aerosol dispersed fraction of the organophosphorus compound consists in separating the aerosol into disperse fractions using an impactor and determining in the sample extracts the change in the proportion of "working" phosphorus in general, characterized by that the total phosphorus is determined from the area of the undivided chromatographic peak of all organophosphorus components of the sample by a gas chromatographic method with flame-photometric detection, using a hollow capillary instead of the chromatographic column, under conditions of the minimum nitrogen velocity through capillary of 0.1 cm³/min, and constant temperature of capillary thermostat of 250 °C, equal to temperature of detector.

EFFECT: high objectivity and reliability of assessing heat resistance of the used organophosphorus pesticides, as well as broader possibility of evaluating the degree of decomposition of individual disperse fractions of the aerosol of the organophosphorus compound.

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