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2 678 771

(13)

(51)

IPC

G01N29/00(2006-01-01)

G01N5/00(2006-01-01)

H03H3/07(2006-01-01)

(21) (22)

Application

2017145973, 2017-12-26

(24)

Start date

2017-12-26

(22)

Actual filing date

2017-12-26

(45)

Published

2019-02-01

(72)

Inventor

Kuchmenko Tatyana AnatolevnaBosikova Yuliya Nikolaevna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet Inzhenernykh Tekhnologij" Vo

CHEMICAL GAS SENSOR BASED ON HYDROXYAPATITES Russian patent published in 2019 - IPC G01N29/00 G01N5/00 H03H3/07

Abstract RU 2678771 C1

FIELD: chemistry; measuring equipment.

SUBSTANCE: invention relates to the field of gas and air analysis. Chemical sensor based on hydroxyapatite, made of an OAB-type piezoquartz resonator with silver electrodes with an oscillation frequency of 8–30 MHz, is disclosed, on the electrodes of which is applied by ultrasonic suspension method acetone suspensions of nano-dispersed hydroxyapatite (Ca₅(PO₄)₃OH) so that after removal of the solvent by drying at 50 °C for 20 minutes, the mass of the phase is 2–4 mcg.

EFFECT: sensor is characterized by a lifetime of at least two years with a number of sorption-desorption events of at least 3,000 cycles, and also has high sensitivity and adjustable selectivity to basic organic and inorganic volatile compounds.

1 cl, 1 dwg, 1 ex

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RU 2 678 771 C1

Authors

Kuchmenko Tatyana Anatolevna

Bosikova Yuliya Nikolaevna

Dates

2019-02-01—Published

2017-12-26—Filed