Based on the methods of international standard ISO11348 and national standard GB/T15441, Vibrio fischeri, Vibrio cholerae, or Vibrio cholerae were used as test subjects to obtain comprehensive toxicity data of water quality according to their response to the water body. This product has two monitoring methods: portable and online, which can be used in conjunction with conventional physical and chemical monitoring instruments. When water pollution occurs, it can comprehensively, accurately, and quickly determine the degree of water pollution.

Method principle

The LFTOX-2010 water quality comprehensive toxicity analyzer is a water quality comprehensive toxicity monitoring system based on biosensing technology, which detects changes in the luminescence intensity of luminescent bacteria during metabolism. Luminescent bacteria are non pathogenic bacteria that have the ability to emit light, with a certain intensity under normal conditions. When luminescent bacteria are in a toxic water environment, their emitted light is inhibited, and the comprehensive toxicity of water quality can be quickly and accurately determined based on changes in the intensity of luminescent bacteria.

FEATURES

■Screening excellent bacterial strains with stable luminescence and high luminescence intensity;

■The strain has high sensitivity and fast response, and can respond to over 5000 types of organic and inorganic toxins such as heavy metals and pesticides;

■Advanced freeze-drying technology and frozen strain activity recovery technology are used to ensure the activity of the recovered strains; After activation, the strain can be used directly without pre cultivation;

■The strain can be stored for 6 months at temperatures below -20 ℃, and can be preserved for 7-10 days after recovery.