Biotoxicity analyzer
Based on the significant negative correlation between the relative luminescence intensity of luminous bacteria and the total concentration of toxic components in water samples (P≤0.05), the relative luminescence intensity of luminous bacteria in water samples can be measured by the luminescence intensity of bacteria, so as to indicate the acute toxicity level of luminous bacteria. The acute toxicity level of water quality was characterized by the equivalent reference concentration of mercury chloride per substance (in g/ child), or by the EC50 value (half effective concentration: in sample percentage concentration).
The full set of measuring devices is set in a thermostat, which makes the instrument measurement more stable and accurate.
Through independent patented technology, most of the light emitted by bacteria (more than 70%) can be collected into the instrument for subsequent light inspection, and the instrument has high measurement sensitivity and strong stability.
Using the proprietary "photon counting" technology, the measurement sensitivity is greatly improved, the background noise is effectively reduced, and the influence of water sample turbidity or blackness or color on the measurement is effectively solved.
A single measuring unit is used to measure blank samples and actual water samples. Compared with two measuring units, it has the characteristics of stable measurement, simple structure and easy maintenance under the premise of ensuring the measuring cycle of about 1 hour.
Meet the 1S011348 standard, detect more than 5000 kinds of toxic substances, including heavy metals, pesticides, detergents, herbicides and other independent patents and proprietary technologies, The problems of environmental temperature change, influence of turbidity and background absorption, unstable luminescence and light detection, short life span of bacteria solution and large amount of bacteria were successfully solved in the field of online water quality monitoring
