FIELD: analytical chemistry.
SUBSTANCE: method comprises preparing the detecting device for the operation, which includes modifying the electrodes of the piezoelectric quartz resonator at the 9-MHz frequency by the solution of β-cyclodextrin in ethanol so that the mass of the film after exposing piezoelectric sensor in drying cabinet at a temperature of 60°C to be 20 mg, blowing the air to be analyzed through the filtering member for 2 min, setting the prepared piezoelectric sensor into detector, connecting it in the circuit of the high-frequency quartz generator, recording the analytic signal as a frequency of oscillations of the quartz plate of the piezoelectric sensor when equilibrium in the sorption system is established, plotting a calibration curve, and determining the concentration of the gasoline vapors in air from the calibration curve.
EFFECT: enhanced sensitivity and reliability.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETERMINING CONCENTRATION LIMITS OF BENZENE VAPOR WITH AIR INFLAMMATION | 2006 |
|
RU2328727C1 |
| METHOD OF DETERMINING PHENOL IN AIR | 2010 |
|
RU2441231C1 |
| METHOD OF DETERMINING VAPORS OF PIONIC ACID IN AIR OF WORKING AREA | 2005 |
|
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| METHOD FOR DETERMINING MICRO-CONCENTRATIONS OF ETHYL SPIRITS IN STEAM-GAS MIXTURES | 2007 |
|
RU2321846C1 |
| METHOD OF DETECTING METHYL ACETATE VAPOUR IN PRESENCE OF BENZYL ACETATE IN WORKPLACE AIR | 2009 |
|
RU2396555C1 |
| METHOD OF PREDICTING STORAGE CAPABILITY OF CURDS WHEY AND FRACTIONATION PRODUCTS THEREOF | 2006 |
|
RU2315291C1 |
| TEST METHOD FOR DETERMINING VOLATILE ACIDITY OF WINE | 2007 |
|
RU2329495C1 |
| METHOD OF DETECTING BENZENE | 2009 |
|
RU2390765C1 |
| METHOD OF DETERMINING FORMIC ACID VAPORS IN WORKING ZONE AIR | 2004 |
|
RU2265834C1 |
| METHOD OF DETERMINING NITROMETHANE IN AIR | 2002 |
|
RU2206084C1 |
