MOBILE DEVICE FOR RAPID ASSESSMENT OF LIQUID AND SOLID AND AMORPHOUS SAMPLES Russian patent published in 2016 - IPC G01N27/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to express analysis of liquid and solid food and nonfood products, waste, natural and drinking water, loose and amorphous materials, for which it is necessary to quickly and without native state sample preparation, to assess the property of the dominant state, for example, the presence of artificial additives, deviation from normal state during storage, intensity of pathogenic conditions (decay) if contaminated by anthropogenous, including toxic, compounds in equilibrium gas phase over small volume of sample, including in field conditions and “on-site”. Mobile device for rapid assessment of liquid and solid samples, amorphous samples includes a housing accommodating a microprocessor and power supply elements. It can be connected to power supply. There is a power indicator on the front panel of the housing, display for displaying measurement data, including instructions “start, finish”, a detection cell with tightly closing cover on the upper panel of the housing. In the lower part of the cell there is a plate with seats for two detachable measuring elements, and a tightly closing cover with a top branch pipe to feed a gas sample. Near the detection cell there is an operation indicator for measuring elements, which controls the system of measurement and data processing. Two measurement elements are piezosensors are with different coatings on electrodes; wherein the piezosensors have a common algorithm of processing their responses.

EFFECT: higher mobility and compactness of device due to minimum sizes of the housing with display and microprocessor, detection cell, rapid receipt of information on content and ratio of content of various volatile components in equilibrium gas phase, high reliability of detecting volatile compounds.

1 cl, 2 dwg