Optoacoustic Measurements for Small-Volume Liquid Samples

• Authors: S. Egerev
• Languages of publication: EN

Abstracts

EN

High sensitivity of optoacoustic measurement method makes it possible to use it for the analysis of the liquid samples having microliter volume. The core of any measurement optoacoustic system is represented by a so-called optoacoustic cell. The paper deals with a layered prism optoacoustic cell. It is well-suited for the small-volume sample analysis. In the paper, laser-induced elastic pulse in the layered prism cell is examined at the stage of its generation, at the stage of its propagation through the body of the cell, and at the stage of the wideband pick-up with the piezoelectric transducer. This pulse serves to determine trace concentrations of various impurities in the sample. The optimization of layered prism cell parameters is proposed. Figures of merit of optoacoustic determination of lipopolysaccharides in the liquid small-volume sample with the use of the optimized layered prism cell are evaluated as an example.

Keywords

EN

43.35.Bf; 43.35.Sx; 05.70.-a; 42.40.My; 42.55.-f

Discipline

• 42.40.My: Applications
• 42.55.-f: Lasers
• 05.70.-a: Thermodynamics(see also section 64 Equations of state, phase equilibria, and phase transitions, and section 65 Thermal properties of condensed matter; for chemical thermodynamics, see 82.60.-s; for thermodynamics of plasmas, see 52.25.Kn; for thermodynamic properties of quantum fluids, see 67.25.bd, and 67.30.ef; for thermodynamics of nanoparticles, see 82.60.Qr, and 65.80.-g; for thermodynamic processes in astrophysics, see 95.30.Tg; for thermodynamics in volcanology, see 91.40.Pc)

• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 1
• Pages: 10-14

Dates

published

2015-01

Contributors

author

S. Egerev

• Andreyev Acoustics Institute, 4 Shvernika str., Moscow 117036, Russia

References

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Identifiers

DOI

10.12693/APhysPolA.127.10