Analytical Signal Amplification Technologies in Sonoluminescence Spectroscopy by Double-Frequency Ultrasound O.I. Yurchenko, Т.V. Chernozhuk, A.N. Baklanov, L.V. Baklanova, O. A.Kravchenko*
	* Corresponding author V.N. Karazin National University, Svoboda Sq., 4, Kharkiv, 61022, Ukraine; *e-mail: alekseykravch@ukr.net
	Methods Objects Chem. Anal., 2018, 13(3), p. 103-109 https://doi.org/10.17721/moca.2018.103-109
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Abstract

The application of ultrasound (US) of high frequency (2-5 MHz) and simultaneous action of US of high (2-5 MHz) and low (22 KHz) frequencies was studied for the initiation of effect sonoluminescence in sonoluminescence spectroscopy method. It was shown that sonoluminescence spectroscopy at with US of 4 MHz let us to determine content of the main substance in natural brines and hot coolants with better metrological characteristics than at use of US below 2 MHz. It was shown, that the simultaneous action of US of high and low frequencies sonoluminescence initiation let us to increase the value of analytical signal for Calcium(II) and Magnesium(II) in 5-10 times and to determine its content according to demanded in salt industry metrological characteristics. The new procedure for determination the main substance in coolants’ LiCl, CsCl-1,CsCl-2 solutions, also in natural brines, was developed. We also developed the methodic for determination of Calcium and Magnesium in natural brines, using simultaneous action of US of high and low frequencies. Accuracy of these methodic were checked by analysis of the same samples, using gravimetric, titrimetric and atomic-absorption methods, also by “injectedfound out” method verification

Keywords: sonoluminescence spectroscopy, double-frequency ultrasound, cavitation field, brine, coolant, metrological characteristics

Article language: Rus