Some Features of Using the Method of Surface Plasmon Resonance for Analysis of Water and Other Liquid Substances
- Country : Ukraine
- Subject : Physics and technology
Adduced in this review are the parameters of liquid substances that influence on the main metrological characteristics of devices based on the surface plasmon resonance (SPR) phenomenon. It has been shown that the essential features of this method, when analyzing water and other liquid substances, are the dependence of sensor sensitivity and width of the sensitive area in the subsurface region of sensitive element on the refraction index of studied substances and the wavelength of laser radiation. These features cause the necessity to provide thermal stabilization of facility, and when the liquid has high viscosity and refraction index, one should dilute it. For qualitative analysis of water and other liquid media, it is recommended to apply numeric methods based on the Fresnel equations and Jones scattering matrixes.