E. coli in water tester – an electrically driven sealer @2022 with intelligent circuits

Hengmei Water E.
coli detector - an intelligent circuit electrically driven sealing machine @2022 has been updated If necessary, you can click the previous link to learn about Hengmei Escherichia coli detector in water - an intelligent circuit electrically driven sealing machine @ 2022 has been updated Hengmei water E.
coli detector is used for rapid detection of pseudomonas aeruginopus, enterococcus, total coliform bacteria and fecal Escherichia coli, Escherichia coli, and the total number of colonies in water samples, which can be carried in the field, emergency and quantitative
.
The enzyme substrate detection device is composed of four parts: program-controlled quantitative sealing machine, 51 or 97-well quantitative detection plate, 100mL quantitative bottle, and enzyme substrate detection reagent, and the range of water samples is detected: drinking water, source water, bottled water, reclaimed water, secondary water supply, pipe network water, waste water, food water, animal husbandry water, medical water, etc
。 Advantages and characteristics of Hengmei water E.
coli detector: The enzyme substrate method is GB5750-2006 included in the standard method for the detection of E.
coli, the enzyme substrate method is the current method for the detection of E.
coli in water, which is currently recognized by the domestic testing department
with its advantages of convenience and speed, low false positives, and rapid detection of a large number of samples 。 Compared with multi-tube fermentation and membrane method, the detection steps of enzyme substrate method are greatly reduced, and the requirements for the experimental environment are not high, the detection time can be reduced to 24 hours, and it has a good application prospect in daily water sample monitoring and emergency monitoring, which can be detected in time, prevented, and minimized the probability of major public safety accidents, taking GB5750-2006 total coliform determination as an example, comparing the three methods, as shown
in the table 。 Project/MethodMulti-tube fermentation membrane methodEnzyme substrate detection time3-5 days2-3 days1 dayFalse positive—23-26%0.
01Detection range2-1600MPN/100mL—1-2419.
6MPN/100mLEnvironmental requirementsClean laboratoryClean laboratoryNo special requirementsExperimenters are required to have a professional foundation, skilled operation has a professional foundation, and simple training can quantify the standard MPN table Direct counting MPN Table Quantitative method 15 tube colony count 51 or 97 Well plates