The paper presents design solutions and test results for the developed series of flowing and portable fluorimetric complexes for use at stationary and mobile stations for monitoring of the phytoplankton concentration in water. An example of combining complexes into a single system of environmental monitoring of coastal zones is presented.

Keywords: environmental monitoring, scientific instrumentation, fluorimeter

In the present work the mesoporous transparent silica monolith with surface area of 650 m2/g was obtained by sol-gel method. Introduction of gold salt into reaction mixture allowed to form micro- and nanoparticles of gold in monolith's volume by rising the temperature. The obtained composite was stabilized by activation in air at 600 °C. It is an useful model for investigation of optical and catalytical properties of noble metal particles.

Keywords: gold nanoparticles, sol-gel synthesis, porous glass