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Water quality E. coli online analyzer monitors E. coli concentration in water in real time
[China Instrument Network Instrument Development] Microbial detection in water has always been a worldwide problem. Recently, a water quality E. coli online analyzer successfully achieved the water quality inspection time reduced from 24 hours to 2 hours, which can effectively monitor the growth status of microorganisms in water. At present, this technology has been applied for invention patents in China and Canada respectively.
(Image source network)
Jiangsu Delin Environmental Protection Technology Co., Ltd., located in Nanjing Dongshan International Enterprise R&D Park in Jiangsu, recently teamed up with the research team of McMaster University in Canada to develop a water quality E. coli online analyzer that enables rapid real-time analysis of large intestine in water for the first time in China. Concentration of Bacillus bacteria, the product is expected to be marketed in the second half of this year.
Rapid detection of E. coli in water is a worldwide problem. Because E. coli is extremely tiny, and there may only be a few in 1 litre of water, the microscope can't capture it. Therefore, although scientists have developed a variety of detection methods, there is a necessary premise is to first spend 24 hours with liquid culture medium to grow E. coli bacteria, so that it can rapidly breed into large groups, and ultimately detect the number of coliform bacteria , and then back down to estimate the actual amount of E. coli in the water, the general accuracy rate is only 75%.
At the global (Nanjing) R&D summit five years ago, several experts from the University of McMaster in Canada at a glance “darkened out†the environmental protection enrichment technology of Jiangsu Delin, and the mature flow cytometry analysis technology of the university Let Honglin, chairman of Jiangsu Delin Environmental Protection, be quite excited. The two sides hit it off and they soon reached an agreement. After two research teams jointly developed, this analyzer has just recently made a prototype.
Hong Lingcheng introduced that the core of this analyzer is the “concentration†technology, which requires no culture of bacteria and can be directly detected online, reducing the original detection time to at least 24 hours or more and now to 2 hours. What is concentration? Hong Lingcheng made an analogy: "Like cups of tea, we have to figure out how many tea leaves are in the cup. Just drain the water, and then count the tea directly. It is also necessary to detect one litre of water. For E. coli content, we made a micron-sized filter, filtered out the water, condensed it to 1 ml, and then found E. coli in it much easier. The capture accuracy rate can be as high as 95%. Technology has applied for invention patents in China and Canada respectively."
The product can be widely used in high-rise residential roof tanks, swimming pools, etc. to monitor the E. coli concentration in real time. In addition, this instrument can also facilitate the regulatory authorities to obtain data, conduct more effective microbial monitoring, and give early warning of pollution accidents.
(Original Title: New Water Quality E. Coli Online Analyzer Significantly Reduces Water Quality Testing Time)