Development of the Underwater Spectrometer for In-Situ Chemical Analysis of Seawater by Laser Induced Breakdown Spectroscopy

At present the important tasks are to study the biological productivity of sea water, to conduct environmental monitoring of the sea pollution and to search for minerals. The sampler device included in the underwater mobile robotic complex is considered in this paper. The device is intended for the real time determination of the chemical composition of water and bottom sediments. The complex makes it possible to carry out the qualitative and quantitative measurements of the concentration of substances dissolved in water by laser induced breakdown spectroscopy using nanosecond laser pulses.