An experiment system for determining in vivo fluorescence of phytoplankton with five LEDs with different maximum emission wavelengths as excitation light sources was established.

Two common red tide microalgal species Heterosigma akashiwo and Prorocentrum micans in China were chosen for this study,and the viable cell fluorescence detection method was used to study the algicidal activities of 15 strains of marine bacteria associated with marine organism.

In order to develop an in situ algae fluorescence auto-analyzer,the discriminating technology for phytoplankton populations was established by in vivo chlorophyll fluorescence excitation spectra composed of 12 excitation wavelengths(400,430,450,460,470,480,490,510,525,550,570,and 590 nm) of the algae occurring frequently in the coastal waters of China and a multivariate linear regression model.

This paper introduced the experimental set up method for studying the impacts of Cu 2+ on the sonofluorescence of three aqueous luminol alkaline solutions, and compared the sonofluorescence spectra of the solution with Cu 2+ with that of the solution without Cu 2+ .

A new Sonofluorescence method and its spectrum detecting system are proposed and using the method and the system,the sonofluorescence spectrum of a aqueous lumino lsodium hydroxide solution has been obtained.

An approach divides the sonoluminescence from the sound field by using test tube with black plastics and the isotropic light trap is applied to collect sonoluminescence in the trough which irradiates hematoporphyrin out of the sound field.

Methods: The focused ultrasound scanned the phantom in different point and caused the emission of the sonoluminescence.