Biological toxicity detection device of ambient air particulate matter and detection method

Abstract

The invention relates to a biological toxicity detection device of ambient air particulate matter, comprising a swirl eluting module, a separation and concentration module and a bacterium liquid biochemical balance module. The detection method comprises the following steps of: 1) adopting a film filtering mode to collect the air particulate matter on a sample film; 2) elution of samples: putting the samples into a sample tube, and carrying out vibration and elution in a swirl eluting device; 3) separation and concentration of samples: carrying out separation and concentration to the eluting sample tube in a separation and concentration device; 4) bacterium liquid biochemical balance of samples: adding bacterium balance liquid into the separation and concentration sample tube and carrying out balance in a bacterium liquid biochemical balance device; and 5) toxicity detection of samples: using a photogenic bacterium toxicity detection instrument to detect the balance liquid. The invention adopts the swirl eluting module and the separation and concentration module to elute concentrated samples, the biochemical balance device balances the eluting liquid, and the photogenic bacterium toxicity detection instrument is used for detecting and processing the samples. The invention can directly carry out detection to the biological toxicity of ambient air particulate matter and expands the range of using the photogenic bacterium for toxicity detection.

Description

technical field [0001] The invention relates to a detection method in the field of environmental analysis, in particular to a biological toxicity detection device and detection method of ambient air particles. Background technique [0002] Luminescent bacteria are a special kind of marine bacteria. From the 1970s to the early 1980s, foreign scientists first isolated and screened luminescent bacteria that are harmless to the human body and sensitive to the environment from the surface of marine fish, because they can survive in clean water. And emit light, when the water quality is polluted, its luminescence ability will be weakened. The difference in luminous intensity of luminescent bacteria in different polluted water bodies can be used to show the biological toxicity of water quality, which has become a simple and rapid detection method for biological toxicity. In the early 1980s, my country introduced this technology, and successively isolated seawater-type and freshwat...

AI Technical Summary

Problems solved by technology

[0003] However, the current detection method using luminescent bacteria can only be used to detect the toxicity of pollutants in aqueous solution, and cannot detect the toxicity of particulate matter in ambient air

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