Pure water microbiological detectorThe device is a newly upgraded product with a large touch screen display, replacing traditional buttons. The operation uses biochemical reaction methods to detect ATP content. The ATP fluorescence detector is based on the principle of firefly luminescence and uses the "luciferase luciferin system" to quickly detect adenosine triphosphate (ATP)

Pure water microbiological detectorQinghui Microbial Analyzercharacteristic:
Practicality - upper and lower limits can be set according to environmental detection requirements, achieving rapid data evaluation and warning, and rapid screening of surface cleanliness.
High sensitivity -10-15 to 10-18 mol
Fast speed - conventional cultivation methods require 18-24 hours or more, while ATP only takes a dozen seconds
Feasibility - There is a clear correlation between the number of microorganisms and the ATP content in microorganisms. By detecting ATP content, the number of microorganisms involved in the reaction can be indirectly determined
Operability - Traditional cultivation methods require trained technicians to operate in the laboratory; The ATP rapid cleanliness detection operation is very simple, and only simple training is needed for on-site operation by general staff.
Better experience - The test tube adopts a flexible plug-in design, which can be regularly cleaned and used for a long time, extending the lifespan of the instrument.

Instruments for detecting bacteria in waterThe swab contains a reagent that can lyse the cell membrane, which can release ATP inside the cell and react with specific enzymes contained in the reagent to produce light. The luminescence value is then detected by a fluorescence lux meter. The number of microorganisms is proportional to the luminescence value. Since all living cells contain a constant amount of ATP, the ATP content can clearly indicate the amount of residual microorganisms and other organisms in the sample, which is used to determine the hygiene condition.

（1） Bacteria in the airofinspect

Experimental Materials andinstrument】

1. Ordinary agar plate culture medium; 2. Alcohol lamp, inoculation ring, and incubator.

[Experimental Method]

1. Take 4 ordinary agar plate culture media, of which 3 are uncovered and placed in different locationsofExpose to air for 15-30 minutes in the environment (laboratory bench, corridor, window sill), and cover the dish with a lid. The other one is left uncovered as a negative control.

2. Mark the team and name, place it in a 37 ℃ incubator for 18-24 hours, and take out the observation results.

【 Experimental results 】 Control plate sterile colony growth, uncoveredofThree flat surfaces with different numbersofColony growth, compare colony countofDifferences and analyze the reasons.

(II)Bacteria in waterofinspect

Experimental Materials andinstrument】

1. High grade agar medium, water specimens, sterile physiological saline solution;

2. Aseptic test tubes, straws, empty culture dishes, bacterial colony counters;

3. Alcohol lamp, inoculation ring, and incubator.

【 Experimental Method 】 Take 1ml of water sample and add it to a sterile empty petri dish. In addition, add 15ml to melt and cool to 45 ℃ofThe high-level agar is quickly mixed with the water standard, condensed, and incubated at 37 ℃ for 18-24 hours before observing the results.

【 Experimental results 】 There is a certain amount in tap water or river waterofBacteria exist, count coloniesofnumber.

2、 Normal human bodyofbacterioscopy

【 Experimental Principle 】

In the human bodyofSurface and communication with the outside worldofThere is a certain amount in the cavityofBacteria exist and are not pathogenic under normal circumstances. These bacteria can be detected by directly staining specimens or culturing them.

（1） Skin bacteriaofinspect

Instruments for detecting bacteria in waterExperimental Materials andinstrument】

1. Ordinary agar plate culture medium, 2% iodine solution, 75% ethanol; 2. Alcohol lamp, inoculation ring, inoculation needle, and incubator.

[Experimental Method]

Take a regular agar plate and divide it into three compartments on the back with a crayon, labeled as 1, 2, and 3. First, fingerprint your finger at location 1, then disinfect your finger with iodine and 75% ethanol and fingerprint at location 2, leaving 3 blank controls. After marking the team and name, place it in a 37 ℃ incubator for 18-24 hours and take out the observation results.

【 Experimental Results 】

Agar plate 1 shows varying sizes and shapesofColony growth, with 2 areas showing no or minimal colony growth, and 3 areas showing no bacterial growth.